Been using tru oil for years on my own shafts. Target burn or lack of is supperior to other finishes in my opinion. As someone stated above I use 3-5 depending on my mood or what they will be used for. I usually steel wool before the final coat. Duco or tape is the best for fletching. I use tape and have yet to have one turn loose. It also holds paint for cresting well. The only negative is it requires more labor, but it dries fast, so I can put on four coates in two evenings, and crest and shoot the on the 3rd.