how much p tex work? filing his edges to what? 25.00 a stick is righteous if you know what you are doing....if not then you should pay him.
skip the p tex and buy some toko powder for repair normally relagated to stone knives and bear skin technology of P-tex.
If you know your shit a ptex repair is great and it will hold...but it is an art mastered by few. Flame temp, carbon build up, and base/damage pre prep are key here. chk the toko stuff easy peasy and it works great.