I have a kodiak mag thats 45@28. Both 2018s and 2016s fly like darts. They are both cut at 29 inches with 175 grain fiield tips. How is it possible they are both bare shafting well at 20 yards? And the dilema, should i use the 2016s or 2018s ? The 2016s are 50 grains lighter. They weigh 524 the 2018s areabout 580. I'm leaning towards the 2016s , my only concern is getting pass throughs on big deer. The 2016s are gamegetters and are considerably cheaper in cost. Any of you guys hunting with the 500 gamegetters with a similar setup. I think i might be overthinking this, but i can't decide, thanks Matt