If you're only going as high as kronstadt and you are definately going to keep your restorer then you may aswell keep the seaman, cos its just as much a waste as the restorer is...

For a crew that was aiming for BB6 I'd have recommeneded you replaced both the restorer and the seaman with Engis (and that you started rotating more supports in there to actually have a full crew by the time you reached 120) but if you really want to keep the restorer then I dunno what to suggest. You realise that keeping it until you cap then means that youve leveled something completely useless once you've reached the cap? (Or something that is, at best, a really bad repairer)

If you actually want to play the kronstadt and do so then you could cap your SD without having a restorer not long after reaching it, maybe mid 80s, especially with supports on the T slots instead of AA.

SN really isnt the nation you'd go for if you like speed... quite the opposite, its easily the slowest nation of all :/ With good engineers though you can maintain decent speed even with AA guns but again this is at higher levels...

To plainly answer your question, no, thats a pretty bad setup excluding wether you go for AA or supports on T slots because both of those types of setups are viable. For your particular circumstance? Sticking with a restorer isnt a good idea, and the seaman wont contribute, if you like speed you will NEED engineers to get anything remotely resembling speed.

Like what the poster above me said, if you like speed, Soviets are not for you. Soviet navy is the slowest navy in game.

I would strongly recommend restarting with a good crew and making either a MN (speed+damage, low range+low durability) or KM (above average/fast speed+long range, low durability+low damage) crew if you like speed.

If you want to keep grinding SN (note that the BB1 is a very frustrating grind) to Kronstat, I'd recommend...
1 Scout
3 Rep
4 Eng
0 Rest
0 Seaman

Hey thanks for the input, I didn't realise SN was the slowest nation I thought that was still UK. Anyway their nation bonus is +2 Eng so I will take your advice and go for 4 Engies in total to hopefully cap speed and get me a really long OH to make up for being slower. I guess I will have to take a small speed compromise if I want SN range + firepower but isn't Kronstadt a BC and hence should be a bit faster than average even for SN?

I think I would hate MN because of the short range but I already started a KM crew.

Regarding the Restorer, I have heard a few times that if you will not cap SD for whatever reason it's worth having one. None of my crew is Elite or Boosted, and most don't have full Vet or Expert, so I don't see how I will magically cap SD in 20 lvls when now I only have 200.

I will replace the Seaman with an Engie I thought that would be the case, maybe this will wait until my US crew gets a CV so I can make credits and buy one near Gorki lvl so I dont have to grind ANOTHER crew through Blitz.

Regarding the BB grind I know it's horrible so I plan to use Gorki all the way to Izmail. That way at least I don't become a liability to my team by taking up a BB slot in a crap ship and can still do some damage to the enemy BBs with the long range 10" guns.

IMO, the 900 SD cap isn't as important as the "repair rate jump". If you have a decent crew, around kronstadt level if you have 3 reps and 4 engies, you're rep rate will suddenly jump from being useless to being useful.

Also remember that the higher level you are, the more ability points you get per level due to the fact that sailor classing is more efficient at higher levels.

SN also has decent enough AA capability that the gorki and pca make good AA boats with the SD-2s which can be an effective way to both earn exp and also contribute to the battle instead of trying to actually damage the enemy bbs yourself. Just dont forget atleast 1 bind of HE to fend off stuff that attacks you if you opt to remove main guns for speed and level suports in their gunner slots.

Seva for SN is somewhat tough sledding. Spread isn't tom bad with even low 3 bar gunners but the range is very short and the damage isn't particularly good either. At some point I will make a practice room and make direct comparisons, but subjective impression is that the SN seva is 2nd shortest range PBB.

As was noted above by another poster the restorer and seaman are kind of a waste of space. I personally would keep the restorer till the rest of the crew was capable of giving ur boat 900 SD, but that's just me. If ur crew is not BVE'd that might not happen till they reach BB4 lvl.
Regardless of what you choose to do with the rest/seaman IMO you should train some more supports, at least one of each if not two.

thanks for all the advice. After buying a lot of crew, I'm currently running:

3 Eng
3 Rep
1 Rest

gives me about 400 SD at crew lvls 53-57. I ditched the Seaman but I'll keep the Rest for now, as noted. I hope to buy a Rep to replace the Rest when my SN caps but that's gonna be a long time from now because I don;t BVE