Turning a speedo into a switcher

Hey all,

I had an electronise 2 way switcher controlling my burket and 5/2 valve for the flipper in Turbulence but its given up the ghoast...But i got loads of electronise speedos from past projects in the workshop so i tryed hooking one of those up in its place, but theres a delay, Im guessing this is because it slowly lets current through instead of all at once. Also i carnt use it on my toggle switch on my remote, So is there a way of unsoldering bits to make it a 1 directional switch working of the relay? Has anyone done this before or know how i could do it? Would save me having to buy a new switch :) and i like having the speedo there as it has a built in BEC, witch saves me needing the r/c battery.
Thanks.

Dave- Team Turbine