IMO there is no doubt the old stuff will still work. But the new bows are engineering marvels. I had a High Country bow that I shot lots of game with and it was relitively fast and accurate. Early this year I purchased my first parallel limb design, Martin Firecat and then a Cheetah. Both of these bows draw and shoot so smoothly and are fast quiet and accurate. After shooting these 2 bows for a couple of months, I broke out the High Country to shoot it a bit. What a difference. The old HC felt horrible to draw and on the release, I never realized how much it jumped in your hand. It didn't take me long to realize that I no longer wanted that older HC and I sold it to my neighbor who was tickled pink to get it.