Lyz... I have something for you to think about... a question if you will...
If your legs are doing a great job at the moment, and taking you the way you want them to on a bike, why do you want to change the muscles to do something else?
Shouldn't our bodies be about being fit? And doesn't "fit" come in all shapes and sizes?
Forgive me if I offend anyone... (points at low post count and recent joining date) but I really do believe women should be guided by how well their bodies work, not by how they look.