Following on from your other thread, I have found that I change colours. I suspect that any fox will get used to a colour and if they have had a bad experience with it, they will shy away. Just recently, I have been back having success with red - but prior to that it was amber - and prior to that white. I don't know if its season, or atmospheric conditions, but that is what I see. I haven't used green a lot, I have to say, but I have shot foxes under and ND3 (the green laser) and I found it easier on my eye - better definition of target than I get under red. Did it spook them? Perhaps a little less, but I think each colour has its benefits and the collective on here will all have their favourites. For me, it's amber, but none is right or wrong - it works or it doesn't.