Just replaced the flipper coil sleeves on my machine. Originally tried to install the extra sleeves I have for the Getaway HSII and they were tight. So called Marco and they said the Bally sleeves are different. Ordered those and they are the same (by appearance) as the Williams. They were all tight, every coil. No damage to any of the coils and machine is in excellent condition so think I can rule out bad coils. The coils I took out of the machine slid in and out easier and actually look smaller visually.
One other thing, replace all the bulbs with LED. Used the comet NG pink bulbs for the orange inserts and it looks amazing. Highly recommend.