So I have a Gretsch junior Jett that I want to modify. I'm thinking about throwing some rickenbacker pickups into it, specifically the horseshoe bridge pup from Lollar. I was hoping to use mounting rings to make adjusting the pickups easier, but the mounting rings online are going for 100+, which is way more than I want to spend. I found a website, pickguardian, that makes a plastic mounting ring for rickenbackers in a variety of colours. Anybody have any experience with them? For about 20 bucks I feel like you can't go wrong on a 300 dollar bass.