I finally found some mini's and had an opportunity to shoot them. I have the opsol mini clip insert in the shockwave and had no feed issues.

If you have a shockwave you have to try them. My son and I were both grinning ear to ear. Everytime I fired the shockwave with the 2 3/4's I felt a sense of impending broken nose while sighting down the barrel. With these the recoil is suprisingly manageable. It may be the funnest firearm I have ever shot.

I'll bring a bunch to the first group shoot for people to try out.