We went to the trefoil training this weekend in Yorba Linda and it was a great course for the surgeons and GPS,but the lab portion was lacking info. It went something like, so do your waxup, make this here matrix and BING!!! It is ready for delivery.. A lot of it we can figure out but there is a lot of missing threads here?? Has anyone done one yet? Need some help here. We have several cases coming up and want to be well prepared for the day of surgery..