I have owned 6 Limcat limited guns. Standard barrel, hbar standard barrel, Tracker, and (2) Hbar Perfect Sight. For me the Perfect Sight was the softest feeling shooter of them all. The Tracker is more popular per Julian due to being the being fastest to cycle and IPSC legal. You cannot add Hbar to a Tracker yet but Johnny is adding Hbar to island barrel Open guns so maybe he can do an Hbar Tracker now too. All of my Limcat limited guns ran perfectly and all shot great. Lots of it comes down to personal preference. For ME I would go Hbar Perfect Sight based on your health challenges and desires. But, call Julian anyways.