Ok so I use the McKenzie tan, I've done about 50 hides with it (mostly small game) and never had problem. I just finished a deer cape as a favor for a taxidermist that I know. When he gave it to me all salted I remember thinking that it was a pretty big cape, about 22" or 23". He didn't bother to measure the neck before he gave it to me, so no original measurements. Once tanned we measured the neck. could only get 20" inches stretching it pretty hard. I shaved it quite thin so I know it wasn't to thick. I've heard deer capes can shrink, but also that u can get a really nice stretch as well. What happened? I know it wasn't the tan because after I pulled it out of the pickle I did a quick measurement on it and it was 20''. Was it just the way the cape turned out? The only other thing i could think of would be the salt level? I usually keep mine at about 42 this one was closer to 45. Would that have anything to do with it? Are the any good tans out there that maybe have better stretch just in general?