STOCK vs 25mm Spacers stick out just a bit. I don't think 20mm would have been enough. Once lowered I think it will be perfect. The gap really bothers me but waiting for some more coilover options to come out snowed in anyways.
So I am lowered on Swift Springs. I am running garage line hubcentric 20mm front and 25mm rear. I have a nice tuck in the rear. No issues with rubbing or scraping.
So in my opinion I think they feel great. Not bouncy or harsh at all. I have read that other people feel differently. I’ve had them on for 6 months or so. I waited a month got the car aligned. And I’ve been extremely happy with the set up so far. Hope that helps.