I switched to fixed blades in my second year and have'nt looked back. Its all about perfection. I have learned many things on this board and the #1 thing is to be proficent with all your equipment. This means all parts of the arrow, your bow, tuning etc. My biggest mistake was not shooting and checking every new arrow for trueness, flight, grouping and fletching clearance. You owe it to the animal, a quick and ethical kill.

Also, mechanicals are not for everyone. Your bow must have the proper energy to open them. Even then they may fail on certain shots. I think their best feature is good flight without adjustments otherwise I think there will allways be a debate wether or not there're any good. If you have doubts then you know what to do.