I was told that it's far better to have the floats a bit loose as to have them too tight which causes puckers. When I start the new color I pick up the float and after the first stitch I kind of stretch the work a bit to ensure the float remains loose. Hope that answers your question.
What do you mean guys don't knit?
Linux: because a PC is a terrible thing to waste.
Perfection is overrated. Knitting is meant to relieve stress, not cause it. Relax and enjoy it.