All I've ever used is 1 color. I kind of laugh when guys ask about nock tuning when they fletched their arrows with a different color cock vane. Most nocks have a raised index ridge on one side, so even in the dark you can nock your arrow correctly. But IMO as long as your arrows and bow are setup reasonably well, even if you nocked it wrong you should still be very close to where you're aiming. And also, with a 3-fletch there is only one way to nock the arrow and have your fletching in your "normal" orientation. The other way will have your fletching orientation all wonky, but even if you shot it that way.......you should still be acceptable. With 4-fletch you have a 50% chance of nocking it right, and either way you'll still have the same fletching orientation.So do you run all 1 color vane? Seems hard to orient if that’s the case. I suppose you could do this mark the shaft and then refletch.
As an example......just yesterday I was shooting at 40 yards and shot the end of a nock off one arrow. That arrow wasn't marked at all, so after putting in a new nock I was basically starting from scratch. The first three times I shot it, it kept hitting in the right half of the bullseye. So I started nock tuning until it was down the middle again. The first three shots were still in the bullseye.........they just weren't perfect. It's all a matter of how far you want to take it.