Hi Broom, I've done the two tips in one shrinkie before... ya got a lot of room w/the shrinkies....
I personally like Amm's shrinkies over docs... never tried Kristins... yet..
Might as well tip your own hair... save $ ! Plus you can make them bigger - for a shrinkie install
with shrinkies can i just buy pre tipped hair and apply them? instead of pretipping my self? who has the best shrinkies?