rookie, what the fixed blade broadheads did was tell you, you have a problem. It's either a problem with your bow not being tuned, your arrows being wrong for your bow, your arrows not being tuned or there is an issue with your shooting.

My question to you then, Why on Earth would you not want to fix your problem?

Sticking with the mechanicals is just masking the issue, sure they might hit where your field points are but they are not hitting there to the best of their ability, ie arrow travel.