I just got a new spintester so I disided to give the old Zwics another try. I mounted up 2 of them on those "glue in glue on" inserts and spun them both. One spun perfect but the other was alittle off. I remounted it a few times, changed arrows, heads, and and also changed the insert but nothing worked. Is there anything I am missing that will make this work, any tricks?
Thanks for any help.
Also a 125 glue on braod head with a 3 rivers glue in glue on adapter is 165 grs, and it matches a 145 point in a standered insert perfectly. I just thought I would share that because this fall I had a hard time getting any info on it.