But that’s my point, 3 sections into bolster into 4th section into T1 is a terribly rough early game where you have to survive until the AEC, RE and sniper come out. No idea why you think OKW struggles against it, in fact I find it most difficult to pull off vs okw who just blob into my cutoff early.
I think cheaper bolster with the fuel cost added to T2 would work well since it would allow the faction to be balanced around 5man sections instead of considering both 4man and 5man squads.
Unless you have a terrible first engagement, brit early game vs okw is really really easy. 2 sections or a vickers and a section will dumpster a volk and a sturm any day and from there you have more field control and more DPS with your sections than his volks can ever hope to match. Unless you get caught out in the open, you shouldn't be losing with sections against unupgraded volks. Like, besides hiding sturms behind a shotblocker or usinga building or something, I'm not really sure how one would lose to OKW early game. There's also the for some reason virtually bulletproof UC.
Making bolster 15 fuel would effectively just be making sections de facto a 5 man squad (and also just more OP version of riflemen). At that point, might as well remove bolster and make them 5 man stock, but again, don't see any reason for it.
I agree with your sentiments on midgame but I find it super easy to snowball into in 1s honestly. Brit early game is not the problem.