Recently picked up a Gottlieb Tee'd Off (93) and am starting to upgrade some of the playfield lights. I really want to change out some of the flashers that rotate around the machine but I havent seen a lot of options in the 67 bulb size. Ive done some research about using 89s in their place but have read some mixed reviews there. Most say it will only result in shorter bulb life but I was just wondering if there was any reason this would be different with a System3?? Anything else I need to look out for?? Thanks