Budget super safety - Atrius Development Forced Reset Selector

Bought this on a sale, thought I'd give it a try. I looked at all the reviews and install tips. I put this in a PSA lower and BCM Upper with a SOLG LFT trigger. I did have to remove some material on the rear of the trigger to prevent binding even though Atrius says it's compatible. I did not have to touch the upper, function tests fine but need to try it at a range for final decision.