+1 due to light loads.
Had it this weekend, on 3 out of 5 stages. It was def change in "Boom" whne they would fire and not even make the slide come back. it was not every round just whenever, 2 in a row, 1 outta 10, etc. And yes I use/love slide glide and it was lubed. Just all due to weak powder charges. I have ran my xd40 service down to 126pf with no problems(all fact springs)