Quoted from dasvis:AS relays are the work of the devil.
Yeah, they're fiddly but with a little patience they're not overwhelmingly bad. The best thing about them is they can be taken out of the game and put on the bench to work on.
It the grand scheme of things, they're not as bad as the Ax/Bx relay setup, and certainly not as bad as the half moon credit unit. And as pointed out, Steve Young has parts for them.