I actually own the .40 and the 9mm. My LGS received 2 of each about a month ago and called me when they arrived. Good deal too ($800 Out the Door for both).

I love both guns and I have not had a problem with either of them. The recoil is roughly the same, with the .40 being a little harder to manage with follow up shots, too be expected I guess.

The problem with the magazine drops does seem to be embellished simply because people who have problems are more apt to go online and talk about it.

I know 2 other people with the .40 shield and between the 3 of us we have not had 1 single problem with 1500- 2000 rounds put downrange between us.

No real preference between the two, either guns are a great choice. Guess it all comes down to personal preference.