Hey guys. Wondering if anyone has experience with Rotosound flats in the medium scale length. It seems they come only in 40-50-75-90. I was thinking of putting them on my Mustang RI. Kinda curious what color silks they have one 'em too. I would imagine they are pretty loose for flats (because of the light gauge). I have used the regular long scale flats (45-105) on my P bass with good results. Now Im just looking for some good flats for my Mustang RI. Ne input welcomed.