I have just finished trying to use RWS 1075 caps with my Slixshot, match conditioned guns. About a full box later my results are they work 90% of the time on second strike and 1% of the time on first strike which make for great practice if you enjoy frustrating practice.
Even with an original spring installed to hit the cap harder it did not improve ignition and required resetting the hammer stop.
As far as I am concerned they are fine for practice. plinking, or can chasing, but for competition Remington #10 are 100% reliable.
If they work for you more powder to you.
Hold center
Hit Center
Don't look Surprised
Bunk