PEARL I did and do it like this.
I've put 20 plus or more on 2 different ways. First off you have to scrape all the fat away and it has to be totally cean of fat. I nail streach to a board. Let me say skinning tails suck use a thin sharp knife.
After skinned,scraped ,dryed. When I'm ready to use it. I uselly trade for them arerady skinner but for the ones I get local I have to do it myself. I put in water a day to make it plyable. And cut it just like you would leather. The punch holes I used a small leather punch. But I like useing a leather awl and just punched them in. I like the awl no cut edges like punched to help in the tearing. Then I just use a large needleto sew it on with.
Tails are softer than leathers and punched holes tear out easyer. I fit them where I can sew them up snug Tails dry and will srink. Which is good.
I've also glued on thin leather strips 1/2 inch lenth of (holes) handle. Then awl in the holes. They really good at backing up the holes to stop it from tearing out. This works really good and I did a lot like this. But atfer a few you'll know how much pressure you can go before tearing out as hole.
Lately I've cut thin elk hide (soaked leather and hide) cut to fit, glued the hide to the elk hide. Glued on with TB111 then awled the holes. And sewed on while plyable.
BEAVER TAILS GIVE YOUR BOWS THAT LITTLE BIT OF PERSONAL LOOK. And there's no better feel and non slip handle materal. It's cold here durning buck season works great this gloves.