Cheers Joolz,
If you do all the side light circuit, including the dash bulbs, you`ll reduce the system load from about 30w down to about 2w as well as reducing heat (anyone noticed how normal bulbs melt the sidelight bulb holders over time?), reducing strain of the charging circuit, switches, bulb holders, fusebox etc.
Its not a lot, but every little helps!
I was also thinking about making custom boards to fit the rear lights, maybe doing 2 seperate circuits on the rear sidelight boards, either 2 rows round the edge for the tail lamp & all the centres connected o the brake circuit, or alternate lines, like 1 vertical row tail light, 2 rows brake, 1 tail etc.