I've loaded from 3.7gr - 4.6gr of Bullseye and 4.5gr - 5.6gr with Unique. Both work well out of my Glock 26 and PF9.
Data from PF9, 1.100", CCI SP primers, 75 degrees:
3.7gr, Bullseye, 909fps
4.0gr Bullseye, 967fps
4.2gr Bullseye, 1015fps
4.6gr Bullseye, 1049fps
4.5gr Unique, 954fps
4.8gr Unique, 993fps
5.2gr Unique, 1040fps
5.6gr Unique, 1070fps
Glock 26 usually runs about 10-20fps faster.
Loads were safe in my pistol, but be sure to work up any loads carefully.