Just picked up the .40 and like it a lot. I also have a G27 and the Sigma is so much less snappy then the Glock. It should be since the Glock is much smaller. So I guess it is what you are used to. I reload .40s and won't add another caliber to the dies list (too long already.) But I also back load on the powder and it really is very easy shooter. Even the factory rounds were nice.
Joe