It's all worth it Dom....
. Hadn't been done on any of mine either.... think I've done them all but a couple now. 5v regulators too.
For info, the music on my Excalibur drops in and out. Usually switching machine off and back on again sorts it.... but definitely intermittent on mine. Not got round to sourcing the problem.

For info, the music on my Excalibur drops in and out. Usually switching machine off and back on again sorts it.... but definitely intermittent on mine. Not got round to sourcing the problem.