I bought a Shield. It ran great and had no issues. Recoil was noticeable and I had to work at keeping on target.
I attributed it to the recoil and the way it felt in my hand. It walked somewhat and found myself having to regrip it.
I installed the Hogue sleeve and it did help a bit, but still didn't work out.
Shooters at the local range let me shoot a 938 and later on an XDs.
XDs was a handful ...
The 938 has checkering on the front and back strap and feels like a 1911 ... a mini-1911. And the checkering gave more grip.
So I bought one and have had no issues.
The size also is more comfortable while wearing.