I've never had a bad experience with any broadhead, fixed or mechanical. I've been totally pleased with all of them I've used (over 30 years), but I will say I hated the G5 Montecs because I could never get them sharp, and dang sure couldn't resharpen them. However, they graveyarded every deer I ever shot with them.

Over all those years I've shot 3-blade Muzzys more than anything else, and have been shooting the new Trocar models since they've been out. They are super lethal, fly completely true, readily available local to me, and are affordable enough I can replace (fully, or just new blades) when I want to.