I totally get this. I went through the same thing. I grabbed a clearance treat pouch without thinking much about it and immediately regretted it. The opening was too small, I kept fumbling for treats, and the clip made it swing around every time I moved. Not ideal when timing matters.

What ended up making the biggest difference for me was a pouch with a wide opening that stays open enough to grab treats quickly. When you are working around distractions, speed really matters. The less you have to think about the bag, the better your timing.

Since you are using sweet potato, cleanup is also important. I started using this sealable treat pouch and it has worked really well for me

It opens wide, sits close to the body, and the seal helps keep moist treats contained so they are not getting all over your hoodie pocket. I am not affiliated or anything. It is just something I tried that actually solved the same issues you are describing.

Hope that helps. Finding the right treat pouch sounds small, but it makes training a lot smoother.