ORIGINAL: KodiakArcher
Thought #1: broadheads always cause spine to react more weak so if the arrow spine is on the edge of too weak they will need the bow to be backed down in poundage. I would estimate that 28" 3-49's are on the edge of being weak with a 125 grain head for your rig (radical hard cam/high energy).
Thought #2: Shorter than spec. ATA usually means higher cable load which is higher poundage (and longer power stroke/draw length) so i'm betting that your poundage was more than you think for your spine estimate causing you to be even more over spined.
Thought #3: If you're going to get serious about doing your own tuning you've got to have a press and a scale so that you can keep cable tension, ATA and poundage in specified tolerance and matched to your arrow spine.
Thanks. Broadheads were 100gr, not 125gr which makes it a bit more puzzling. I can't imagine I would be too weak, but if I am, I wonder if going down 3/4 to 1" in shaft length would bring back into the green. I really need to invest in OT2 so I can run these things[&:]
I know shorter cable length equates to a higher poundage, but how much? Is there a correlation between distance from ATA spec and he effect on DW?
#3-Excellent point. These questions wouldn't even be asked right now if I had a scale. Already started on the rest of the tools (I already have the press), but I'm in a slowdown right now. I'm not buying too many gadgets as I'm closing on my first house with my fiance at the end of February, and we want to be able to put 20% down. Priorities you know
