Hey! If you're wondering about the Jim Dunlop 9073P Ultex Thumbpicks and their comfort over long playing sessions, here's what I've found.

These thumbpicks are made from Ultex, which is known for being really tough and having a nice sound quality. If you play fingerstyle, the bright and clear sound they produce can be a big plus. They're designed to be strong and last long, which is great if you play a lot.

But when it comes to comfort, it can vary from person to person. Our research shows that quite a few players feel these picks have a good grip and are happy with the sound.

That said, some folks have mentioned they feel a bit tight, even if your thumb is average-sized. If they feel snug, you might need to adjust them a bit. Unlike other materials, the usual methods like using boiling water or a microwave won't work here, as Ultex is quite heat-resistant.

Instead, our data suggests putting them in an oven at 425 degrees Fahrenheit to soften them slightly for adjustment. Ultex is really durable, so customization isn't super easy.

For some folks, if these thumbpicks feel uncomfortable over time—especially if your thumbs are bigger or if you need more flexibility—it might be worth checking out other brands that offer a wider range of sizes or materials that can be adjusted more easily.

In the end, the Dunlop Ultex Thumbpicks are great for sound and durability. But for long sessions, a lot depends on whether they fit you well from the start or if you can tweak them to fit better.

If you get the fit sorted, they're a reliable choice for delivering good sound.

Hope this helps with your decision! And remember, it's always a good idea to try out a few options until you find the thumbpick that's just right for you.