I was having a similar problem with the vertical separation of my ARW & the R/G lamps.
Ended up that I re- wired the original "frame mount " (i.e where yours is) as a solo white (simple swap in the console to a separate switch), then parked another on the end of a long folding pole. Ended up replacing the switch with a 2- way centre off - one way does solo white, the other the full boona, theory being I won't need them all at once, so stops accidental confusing illuminations.
Theory being that 10W is better than 30 if you're under aux (therfore <7 knots & no charging) / need an anchor light. I toyed with swapping the bulb for an LED one, then realised that I'd be cheaper buying a bigger battery!