Thank You Jeremiah for responding.
Maybe it's just mine that did it on Maxima hunter 350. I'm shooting a fall away rest too, Rip Cord, and I get good fletching clearance with it and I'm using Blazer 2" vanes with short arrow wraps and the wrap do touch the bulldog collar. Bruce's sharing of his difficulties has made me look at my setup at the results I'm having. My draw is 28" and my arrows are 28" and I'm shooting 100 gr. Hellrazor heads (similar design to the montec). I found 6 out of 12 Maxima hunters 350 to be what I call a flyer not grouping on target like the other six were. And I'm thinking the 69# draw weight might be on the cusp of the lower range of spine for those arrows. But I also notice the nocks were backed off and I tapped the bulldog collar back solid and then slid the nock in tight. I did some good but not a total correction to the grouping issue. I have used the pin nocks for my gold tips and really like the way they fit and function. I might go to a lesser spined shaft and see what I get as well instead of increasing my poundage. And I don't have the 125 grain heads either to test.
Though many people are unaware, the instructions that come with Maximas state that Bulldog Collars should be glued onto the arrows if used. (Then allow the glue to dry and install the nock press-fit with no glue, of course.) The reason Maximas do not come with the collars already glued on out of the package is in case one chooses to cut from both ends of the arrow when preparing or not to use the collars at all.
Both of you owe it to yourself to buy a pack of 125 grn field points and see what happens with the 350s. In my case(s) it has not been enough. But, you may be more fortunate. Of course, in this day and age, a half dozen broadheads can cost as much as a half dozen arrows. So, regardless of the outcome of such testing at this point it may still be a tough call.