How long does it take to break in a v-5/6/7?

[jcuber]

Hey,

Just got my V-cubes yesterday, and I haven't ever seen a thread like this. My V-5 is better than my Professor when it was new, but it isn't loosening up as fast as expected. All of them were alot smaller than anticipated (especially the V-7) but the V-6 seems to be horrible right now. When broken in, do the V-cubes get much better? How long does it take for each of them?

 

[Marvolo]

I broke my v-cubes (5 and 7) in about week for each other. Just solve it more and more times