I havent used the LP primers but have shot off about 2K of the S&B SP primers.No problems at all,100percent reliable.They also chrono about the same as the CCI and federal.They do need a little more pressure to seat,but this hasnt been a real problem at all.I probably shoot about 10K of handgun ammo per year and I honestly dont see any difference between the brands,I just buy whatever is cheapest at the time (be that dominion,fiocchi,S&B etc)
