Ya I shoot 29" and they can be a pain to get out at times if you grad up by the nock, the one I have is really just for field points or blunts not really broadheads. Not really sure on the ground flu-flu's, when I did mine they had the full length feathers in the archery dept of the localish gander mountain for like 9 bucks a dozen 12in. feathers, ended up with 3 flu-flus and some sheild cut feathers for other arrows, ended up with 3 3.5in flu-flu's per feather. I do remember trying the sprials with the full length feathers, and the thickness of the quill made 'em kind of hard to bend around the shaft, especially on my carbons, which should be about the same diameter of your gold tips. Either way you do it works great, I personally like the "straight" type over the spiral, but I also used all solid white, if you did it will various colours of feathers, the spiral would look better.