About a year or so ago I read all the postings regarding LED's before ordering my custom Alembic bass ( it has front and side blue laser LEDs) it hasn't been finished yet.
Quite a few people had good things to say about Fret FX aka Hot Dots, I think its a great alternative to having to send an instrument to Simms or back to Alembic to have them installed which would require major surgery to your axe plus the cost and the shipping.
I've been thinking of getting some for my Series I fiver and Exploiter or some of my other basses, but I'd still like to send them back to Santa Rosa and have front and side LEDs put in....some of those dark stages and light operators that leave you in the dark can be rough.... I can't see S#$% sometimes, unlined fretless 6 string bass with a dark wood fretboard.....LOL
LEDs look really cool on a instrument......... besides being functional so you can see.
I forget who it was but another club member posted this link to another company that make similar products to Fret FX:
http://www.fretlord.com/ they have some neat stuff as well.
Bruce