Ok, the shrinkies are ordered...

I am doing a co-workers hair and she has ordered the shrinkis starter kit which includes the the heat clamp, 450 shrinkies, and and the XL needle. We are going to purchase bohemye hair at a local hair shop. I have been searching this site but can't seem to locate the tread that tells you how to pretip. I am not sure how many shrinkies she will need but I was also considering tipping with the shrinkies. I guess my questions are.....How many shrinkies do you typically use for an entire head. What is the best method for pretiping? How do you pretip with glue? You guys are all so knowledgeable so hopefuly you can help me. I am a little bit confused.

If you look in the extensions 101 magnet which is the second thread on the board there is a link to the pretipping instructions. Heres the link http://talk.hairboutique.com/forum/viewthread.asp?forum=AMB_AP934431446&id=2633 You'll find it under demos/tutorials.
How many shrinkies will depend on the size of your pretips. Amm for example uses mostly larger pretipped strands and I think I remember her saying that she uses aroung 150. Average would probably be around 250-300.