Ive started to dabble with this on my PRO..
My current attempt is to put yellow el-wire on the back ramp (with the yellow bike), and indeed blue wire around the lip of the inner ramp (with the blue bike - duh!).
For the record, having measured both ramps with string, both seem to be just under 3 metres each in length.
I've fitted the blue wire so far (attached with sellotape for the time being whilst I try and work another very discrete way to attach it properly). However, I've not got a chance to attach the wire to the inverter that turns it on....
Talking of which, I've made a custom little breadboard that allows for 4 "inputs/signals" to each colour: these will be yellow upper and lower flashers, and then both of the ramp switches too. As Im presuming the flashers run on +20 and the ramp switches run on +5 Ive bought these vaqriable input voltage power pcbs that should havnlde each signal and output a clean +12 to flash the el-wire! So effectively, the el-wire should flash twice as the ball goes over the ramp and indeed whenever the ramp flashers trigger, which will be pretty cool with the end game sequence as thats all yellow and blue! I didnt want the el-wires to be on all the time of allot of the time so I'm hoping this approach will work well...
Belows a picture of the these assemblies: the breadboard has 4 inputs either side (dioded to not allow rogue voltages being passed between flashers and switches) to a 3 pin connector (red-black wire) that takes the signal into the voltage regulating pcb... The output of which goes into the black boxed inverters that fire the attached el-wire! Phew! All I need to do is make non-intrusive molex connections for flashers and switches and I can at least then see how effective it is (and make a youtube vid LOL).
Do note though, that the el-wire is very yellow and blue even when un-illuminated (though the blue isnt that noticable currently) which is a bit fo a shame as I hoped it would turn out to be clear when unlit.
From google it seems LE's actually use fibre optic cable with a led illuminating the end - this will keep it clear when unfired and I might invest in a V2 version trying this....
Dunno if I'm doing it the best way! Be interested to hear peoples views - and indeed suggestions how to attach the cable without drilling holes!!!!
EDIT: a phew photos of the blue-EL sellotaped into place:
