How do you only manage to get an AEC around T70 timing? It comes much earlier:
-20 + 30 + 15 + 60 = 85 fuel (120 fuel with bolster)
Compared to FHT with T1:
-20 + 10 + 40 + 20 + 30 = 80 fuel (70 fuel with T1 skip)
Compared to T70 with T1:
-20 + 10 + 85 + 70 = 145 fuel (150 with T2)
If you struggle against FHT you should get bolster a bit later. It's Soviets who should fear the FHT because the gap between the T70 and FHT is a much bigger 3-4 minute gap.
I said before: ">t2 into Aec without buying any side tech to boost the only poor ass infantry you have availble then I'd say that situation is unrealistic."
Bolster is a requirement vs both Ost and OKW and so is in a lesser extent grenades but for the sake of fuel costs let's not mention side tech as that would clearly would be more fuel advantage to the halftrack. (You also should add the M3 clowncar fuel cost to Soviet T1)
I've witnessed Expertbaoling go 2 sections > Uc > t2 > engineer start in order to skip bolster for a bit.
The most common build right now is 3 sections > Vickers > bolster > Uc or another Is > T2
Holding with sections without bolster in the early game is a well crafted dream.
Soviets have a much stronger anti light vehicle game with access to > At rifles Penals, Guards infantry, Conscrip Oorah Snares, calling light at gun, ealier mine placement timeframe. The t70 also acts as anti infantry shock unit and not as a true light vehicle counter.
Please do tell me what anti light options Brits have that's plentiful.