I love my bead locks. Expensive yes..... However, I can switch back and forth from my slicks to my Drag Radials without the need of a tire machine in about an hour or so depending on the track or event/class I am in.
Also depending on the manufacturer and style of wheel. Usually anything more them 3"-4" back spacing will interfere with the inner bead lock if double beadlocked like mine with a 6" back space and will require the smaller Pro Stock (Strange Engineering) mini calipers to clear on a 15" wheel. A 16" Dia wheel will be fine.