Welcome to taxidermy Andrew. I use allot of Liqua Tan and Liqua Soft and can get about 6 deer hides tanned with a quart of tanning oil. I just tried Trubond and liked that tan also. I like the brush on tans, easy to use, with good results.
when the customer was called to ask about it, he said he had the cape out in a cooler for a few days before bringing it to us, wasnt sure how long, & other excuses. we just wanted to let him know the original cape was ruining so he could make a decisions on another cape or horn mount. he in the past would bring in rotten heads for euro mounts & such.
never had any issues with the tanner on any other capes so far either.
im not blaming anyone just asking thoughts since i never had a cape slip that bad before ever, never seen it before unless it was on a bad, decomposing body.
the translucent & rubber is what it was like. it had NO stretch & as i tried to stitch, it ripped out bad...no matter how thick the hide was in that area.