i find the Wilson pro over grip to be thinner than the Yonex. The Yonex is also more rubbery in feel. Both are very good. Which one you need depends on the racquet grip size and base grip scenario. i.e. with yonex 4 3/8 grip size with a 1.5 mm leather grip, i use Yonex supagrap. With Yonex 4 1/2 grip size and 1.3mm leather I use Wilson overgrip.
1 year ago I replaced my replacement grip "Head Hydrosorb Pro" (1.75mm) and 6 months ago I started noticing that the the grip size was shrinking. Since I added a new replacement grip I've been using Yonex supergrap overgrip or Wilson pro comfort (alternating between the two). A few years back I used to use Head X-treme soft but it got very slippery with hot and humid conditions plus it didn't last long.
I play with a Head Graphene XT Radical MP A (16x19 string pattern) and the grip size is 4/3/8. I've always been playing with an overgrip as I want to go up half a grip size (to 3.5) but I've never had a problem until recently when I started experimenting with wilson pro comfort instead of yonex supergrap. Supposedly they're the same thickness so that's why I intended to use them interchangeably. So what's the problem?
With the Wilson Pro (Comfort) overgrip it's fine for the first couple of hours then the grip size shrinks and it's very noticeable because my I feel like I'm gripping a smaller racket handle and as a result my shots have too much spin and not enough depth. This makes me lose consistency and confidence and it is very frustrating.
Out of desperation I very recently bought a Wilson sublime replacement grip and tried the wilson pro overgrip over that and it was OK for the 1st hour but then the grip size shrank again.
I found out that the default replacement grip on my racket (i.e. when I first bought it) is Head Hydrosorb Pro 1.75mm. Perhaps I should try replacing the current Wilson Sublime (Feel) replacement grip with the original Head replacement grip and then add Super Grap on top? Or should I go for a much thicker Head replacement grip such as this one (
https://bit.ly/3lw02yh) and use Wilson Pro (Comfort) as an overgrip? Please advise as I'm about to lose my mind and love of the game!!!