It is the Makita.
It also has a button that releases the plunge. It does this smoothly.
The problem is the return, the saw swinging back up to start so to speak.
I have to 'help' it pull it back up.
I removed the blade and lubed the only points I can see that make contact that might prevent the saw from returning up to the start position but to no avail.
This is a new development. It has been an excellent saw for almost 2 years.