Not sure if you know this or not about the XO1 esc, but from the factory it is locked and you won't get full speed out of it. You need a Traxxas radio and the Traxxas app loaded on a device as part of the unlocking process. If you want to use another radio, after your done unlocking it with the Traxxasapp radio Castle Link Live must be disabled. All the ones I've seen in chop shops have not been unlocked at all.

The XO1 esc is just the latest (last) version of the MMM with a nicely mounted Cap Pack on it. Unless you have the necessary Traxxas radio and app already (or know someone) it seems like a hassle just to get the cap pack mount. It's well documented the MMM handles the 1717 just fine without it, including my In my LST XXL. Not discouraging running the XO1 esc, just making sure you don't find out the hard way.