Quote Originally Posted by JasonB1 View Post
In my experience (albeit not huge numbers) the A1 stocks seem to be more prone to cracking (seems like most I have seen originate at the screw holes or near the trap doors) than the A2 stocks including a mint A1 I bought. Upside is that it doesn't seem to make them unserviceable, but it does seem to be more prevalent.
Could be. Just because the plastic is thicker or heavier does not mean it is stronger, or the design is not prone to that kind of problem.