I bought both stocks to see which I liked better. Of course there's no clear winner.
The A2 has a great grip angle and palm swell but no hook and a chunky fore-end.
The A3 has a great hook, nicer fore-end, but not the grip angle of the A4 that I love.
Comb is slightly higher on the A2 as well.
If they would cross the Hook and fore-end of the A3 with the grip of the A2, this stock would be perfect for me. At least for my current budget.
No idea which to keep at this point.

The A2 has a great grip angle and palm swell but no hook and a chunky fore-end.
The A3 has a great hook, nicer fore-end, but not the grip angle of the A4 that I love.
Comb is slightly higher on the A2 as well.
If they would cross the Hook and fore-end of the A3 with the grip of the A2, this stock would be perfect for me. At least for my current budget.
No idea which to keep at this point.