Do these semi-metallic need time to bed in? They started out OK but have lost bite and gained squeal now. I just came down a local bridleway and not having been on the bike much and it being covered in leaves, my chicken levels are low, so grabbed a handful of rear brake and nothing happened. I grabbed harder and it squealed, which is what I was about to do when I remembered i had a front too!
Not having much luck on the squeal front, I may be about to change pads again. Meanwhile the front resin is fine.
I just put them in and go. I don;t seem to have the problems that you are Crackle.