I'm kinda interested in this, but not sure where I stand on the issue.

I'd like to know how the percentages displayed are related to the success/failure rate, because I agree that it doesn't always seem like a direct relationship.

I've had perhaps an equal amount of HQ's out of synths that show an 85% and those that show a 15%. It's to the point where if it's not at 100% or a low level synth, I pretty much assume it's NOT going to hq.