Tried these out a while back. Most comfortable and most control I've had with a pick in a long time!
They work great but are a heavier pick. That's good for me as I came from a background in playing Metal and always preferred a heavier gauge pick.
Like most guitarists....I've tried a LOT of picks over the years. Alloy picks, Signature picks, Ultex, Tusq, you name it, I likely have at least one here.
I really like the Dava grip tips because the part you hold is rubber coated and is flexible so it conforms to the shape of your finger and thumb while holding it. This makes it much easier for me to keep the tip of the pick where I want it and doesn't slip out of my hand when I get sweaty.
Also, if you don't drop it and lose it somewhere....they take a LONG time to wear to the point that you need to swap it out. The one I shared in the picture (yellow) has about 4 months of playing time on it now. Just starting to shape and wear a little.