I have researched both of the sights that you mentioned. Both sights are fixed pin hunting sights that are completely legal in all HC classes. Basicly any sight used in HC classes can not be adjusted will shooting on a competition course. Sights can only be adjusted after your score cards and/or equipment is checked at the conclusion of the assigned course. The adjusting of sights in all fixed pin classes is the same. My problem is at what yardage to set my pins and holding on the target. Both of the sights that you are looking at look to be top quality. Good luck this year.