I am beginning to believe TG was not the best choice in powder,and yes alittle goes a long way..
TG isn't a bad powder for 9mm. I have shot thousands of rounds with Berry's 124 grain and TG. With a FP or HP in my Glock I load 4.2 grains and a OAL of 1.12. With my CZ I use 4.2 grains but have to change the OAL to 1.036 to get them to chamber, CZ'z are known to have a short chamber. I have used WST in 9mm also and like it better but there isn't a lot of load data for that caliber and WST.