My opinion, if you go back to a mechanical, you're asking for a repeat of the same problems you had before. I've been guiding bowhunters for years and have seen way too many problems with mechanical broadheads, especially when being pushed by a light weight carbon arrow. They spend too much energy opening and not enough energycutting. If your bow is tuned correctly, and your form is consistent, you should have no problem shooting respectable groups out to 60 yards. Stay away from the mechanicals. They're the devil! [:'(]