costomizing frusturations!

ok so today there have been a lot of argh moments in the customizing of Morrison. I spent at LEAST an hour trying to reroot Morrison's hair, but just couldnt get the right thickness; any advice is welcome. Then i found out (on the back of Morrison's head, thankfully) that sandpaper is much more coarse than sand sponges. I'm hoping to get the sand sponges in the mail tomorrow, along with a few other things, like a set of tiny screwdrivers, which should make sand matting her easier since im completely new to all of this. any advice about rerooting is welcome!