I've been shooting the 600 a little every couple of days. I'm still having a hard time deciding if I like it or not. On the one hand it's really not accurate enough for my taste, on the other hand it sure is fun and it fits the hand and points nicely and I just can't get over it's looks and cool factor. To be fair I haven't really given it a chance to demonstrate it's true potential for accuracy. That would be too time consuming and I have way too many guns I'm working on. It still leaks too much to get more than a magazine per CO2 cartridge out of it. Although I suspect it wouldn't be particularly difficult to fix, I have to face my limited ambition and time for fixing another gun. Maybe fix it this winter, maybe not. Now it's time to practice 10M with the IZH46M.