I once took my ACDC Pro to a one day tournament. It ran non stop for a 8 hour period with the flippers and every other part on the machine copping an extra flogging.
I quickly cleaned the balls and gave the playfield a clean each hour. Nothing ever got hot and nothing ever played up.
The existing hardware works perfectly. Any improvements over this are a bonus. Prob got a whole years worth of my home playing in only one day. They are built well. Even in current form. Just some feedback.