I bought a replacement power board from Marco and installed it this week... I immediately noticed a number of things that occasionally worked or just rarely got activated started working.
I hadn't seen the automatic shark flip happen in the last 12 months, I rarely saw video mode of the skier in the last 6 months, tower ball locks weren't giving the locks occasionally or giving a couple of locks when only 1 was earnt.
All this seems to be working great now... unsure why, but sure am happy.
There's a few things playing up still but I'll get to fixing them soon enough with a bit more reading and knowledge from the forum. Thanks to you all!!
and currently... I'm practically running through central Melbourne (Aust) carrying the box I received today which has my ColorDMD in it, trying to get home at breakneck speed to fit it.
Outta my way non-pinball people!!