We picked up a 61 Flipper Parade last week. The spin wheel lines up perfectly sometimes and slowly gets its self off line to where the numbers form a V and there is nothing to hit. I've also noticed that even if the number seems "close enough" to straight it will not award the extra ball unless it's perfectly straight. I thought it was just mis aligned on the axle or loose on it but it seems to be tight and lines up half the time. I put new tighter springs on it and helped the wheel from wiggling which is what made me think it was loose on the axle. Removing this to work on it looks like a ton of solder work! Any help and suggestions are appreciated. I'm including pics of each layer of the mech.