I have a STI trojan in 40, I use metal form mags with the spacre in the back and it will feed almost any factory ammo. I think the spacers make all the diff.
My trojan will NOT run with wilson mags, but will feed any ammo if I use a mag with a spacer. Including many hollow points and really likes american eagle 165 grn factory loads.
If you want to use grip tape, cut it into 3/8 in wide strips long enough to go from one side of grip to the other. Use 4 strips with a small gap between strips.