Hi guys, haven't been here for sometime but I know you guys seem to have the answers, I had a Axiom with the blue end stringing aid and never had a problem, I just went to change the string on my Excalibur Grizzly and it seems like it's going to break something. Should I be able to use this stringing aid or do I need the Heavy Duty Stringing Aid? Am I doing something wrong because this fells like it doesn't want to budge Thanks Joe