I used a tib. riser with the optimizer and tib 4 power scope today.Tracking after 75 yds is bad.When I up grade I may use a 3x9 for spoting and shot on the lowest setting or use one of the hawk crossbow scopes.
The riser is set at 1 click and I use the optimizer for adjustment for 50 to 90yds(zeroed) 110 or over I go with more clicks down on the riser.Range estimation is critical as I found out today.I dropped a few players at 100 yds I used my range finder,had a spotter and got right on.Remember also the fsr's time to target at 100 yds it's 3 seconds.
I am finding out it's alot of work shooting out that far. But fun !!