Thanks for the responses.Great info that will help immensely with the order quantity, type and colour combinations.
Machine is Medieval Madness but if I am happy with the results will probably gradually convert the others over hence the bulk order.
Looks like there is a lot of choices and decisions to be made.
I have a number of playfields from various games in storage from when I have done playfield swaps so colour matching the inserts to LED's shouldn't be a problem.
I was thinking maybe we could start up a sticky thread which has this info for others to use if they are considering LED'ing their machine?
EG:
Machine Name: Medieval Madness
Section LED type/colour
Playfield 10 555 orange, 8 555 blue, 8 555 red, 5 555 white, 10 906 red
Backbox 6 906 blue, 4 906 red, 30 555 white