Some time back I purchased some of the Fabritac and thoght it was a great idea ,but after trying them I never used them on customers work.T he reasons were that they made the edges of the mount board fairly thick making the smaller rabitted mouldings unuseable ,it also added cost to the job,and it also had the possibility of damaging the fabric since the tacs are rather thick and pointed which can either destort the weave and/or damage the fibers when the pointed thick tacs perforate the fibers.This is especislly true if you find it necessary to reposition the fabric which causes several perforations in a small area.It seems that the only benefit you derive is the speed you derive when disassembling the mount which is a rather small advantage especially if you become proficient and do it right the first time no matter what or how many mounting technique you use.