I got a DX09 spare body which I bought for cheap a year and a half ago. I read about the Armor All avoidance and I thought of boldly using the spare body as a guinea pig for it. Been using Armor All for it since August 2012, every 4-6 weeks, and still no signs of drying up/cracking so far. Never had it in extreme poses for too long, though, and I'm still not saying that the Armor-All fear could be wrong, as I think it's still fairly short a time and I don't think I could try it on other figures as it's only the DX09 body I have a spare of.
EDIT: Since I saw Batman Prof's testimonial with photos regarding 303 Aerospace, I've been on the lookout for it. Any stores in the US (around NY or CA) where it could be easily purchased? Having it shipped here is ridiculously expensive, I'll just look for it next time I'm in the US.