I've been wondering about this issue as well. It's come up once or twice in reviews of MDC figures in particular, and I must admit it's put me off, which is a shame as they do look nicely detailed and characterful.
Can anyone comment on how well the MDC cockpit figures actually fit, into the kits they're designed for? In particular the S.E.5a and the D.H.2. I'm guessing that where eg. Roden do the same types, they may not fit so well, maybe can't be fitted at all...? I'm saying that simply because they're clearly quite big.
Anyway, MDC do probably need to hold back on the creatine/steroids.
Mark