I just replaced a overhead 23 w CFL with a 62w CFL(big sucker!) to aid in flowering my two ladies along with 2 23 w and a 4' Flor. Tube,on the sides. They were doing well but thought the extra light would help. It gives out 4200 lumens and its "color" is 2700.Should help beef up the buds?

dont see why not, as long as its in the right spectrum for flowering (2700-3000) its going to be doing some good.
i think you might just notice the light is hotter then 23-26w

Sure more W = more weed...

Its a little warmer but far from hot...just got home from work and checked them, looking good! Thats why I like CFLS they stay relatively cool and don't spike my electric bill! This bulb is 62W(300 W equivilant) in total only drawing 148 watts. Was $15 at Home Depot.