Well, looks like we're gonna hijack your thread, Jeff.....sorry bro, didn't intend to obviously....but, it happens I guess.....

I changed to a heavy arrow because; I needed/wanted a bigger diameter arrow for shooting 3D this summer. I also needed to get my speed down to around 280 to be "legal", and I knew that light carbons weren't gonna get that done. I shoot better at higher poundage, so I didn't want to turn my bow down to 62#'s to slow 'er down......Soooooo.......I made up some 2613 X7's....Pert near the same outside diameter as a line cutting carbon, and heavy enough to get my speed in the low 280's.....perfect.

So I started shooting them, and was absolutely amazed at how well they shot, how hard they hit, and how quiet my bow was all the sudden. I also found that it didn't make THAT much difference in trajectory. Some, yes....but not nearly what I thought it would. VOILA. Ordered up a dozen big ole alum's for hunting. I've been shooting light/fast carbons fora few years now, at speeds well into the 3-teens......It ain't all it's cracked up to be, but until I shot big/heavy arrows at slow speeds I didn't even realize how much my shooting was suffering. It's kind of like watching your puppy grow up...You see him every day so you don't realize that he's getting bigger, until you suddenly one day pull out a picture of the day he came home.....You just get accustomed to it, and don't think anything about it. It becomes "normal".....Hell, it did for me. But once I started shooting them a couple weeks ago, I've been VERY happy, much more so than I have been.

So, that's my logic behind it.....I'm sure others are different, but that's my story and I'm sticking to it.