I started that way, so I think you all are backwards. Losing my right eye has been a setback but coming from thumb has kept me better off overall. And yes, it's pretty much all instinctive. With time you get used to it. But everything is different-I still have no idea of what you guys keep going on about spine for, as we don't use that measurement. If it's the right length and weight generally it will fly like any other of similar makeup. My first teacher had the arrow bucket of mixed lengths, weights and heads that we had to learn to shoot accurately what was handed to us. So shooting thumb is a lot more than just a shelf choice.