I installed a 240v/25amp bus bar, removed all the power leads from the PCB and joined them together using that. I didn't remove the circuit board as it powers the "ON" LED, but that is its only function now. The power just flows through the unit, so it's truly just a distribution unit now.
I tried the unit back in my music system and the result is fantastic, the music has full dynamic range again. In fact I would go as far as to say it sounds very slightly better, a bit crisper. Getting rid of the various cheap and nasty three pin distribution blocks with their Neon lights, switches, minimum level wiring and poor contacts seems to have improved things.

I've not done anything radical just used a decent thickness of copper in the leads and reasonable quality (not exotic) connectors, the result is very pleasing though.

My system is now sounding great and ready for NEBO8