They do like Geco pellets. Make sure they are seated properly and you shouldn't have any problems.
The grip safety gets a lot of stick, quite unfairly I think. If you check on most pistol sites for this pistol, the real one, they will illustrate the correct grip to take with this. Once you adopt the grip recommended the Grip Safety almost turns itself off. It is not a strength thing, it's purely an attitude thing. Try it for yourself, it really helped me.
UBC Resident Cowboy
St Paul of 55
Been there, bought it, tried it, sold it