The LED scales can be swapped just like any others as long as you are careful removing them.
As far as swapping white LEDs for red, I've done it by desoldering the red LED and soldering in
a white one, but I have yet to find one as bright as the original Vic white LEDs. The factory
whites do take a larger battery than the reds, and I suspect that like Icanfixthat suggested
,the resistance built into the circuit is different as well.
What I would like to try would be to transplant some of these LED lights into the scales of some of the larger models. has anyone ever done this?