Nomad Archer is correct, BTW, nice Deer. Go to the Stihl website, under Chainsaw - Saw Chain - Rapid Duro 3. When you click on that you will see a clear picture of what Nomad Archer is talking about.
Also, I run yellow chain on a green bar all the time and have not noticed that. I think SawTroll was correct, the low kickback bar has a smaller nose, so it will reduce kickback with any chain (although more with green chain, of course). Personally, I think the major cause for increased kick back is a dull chain.
IMO, keep your chain sharp and a firm grip on your saw and you will be just fine. If I thought the yellow bar would cut any faster than the green bar, I would use them.
Also, I run yellow chain on a green bar all the time and have not noticed that. I think SawTroll was correct, the low kickback bar has a smaller nose, so it will reduce kickback with any chain (although more with green chain, of course). Personally, I think the major cause for increased kick back is a dull chain.
IMO, keep your chain sharp and a firm grip on your saw and you will be just fine. If I thought the yellow bar would cut any faster than the green bar, I would use them.