I do Mexican tile like once a month...I would suggest watch out for swirl marks and expect more water on the floor...I use an orbital with a white pad as that helps...These Mexican tiles can disintegrate...Judge as your going...Make sure you counsel your client and let them know all the characteristics of the tile and what to expect!
I would use a blue brush with mono due to white grout lines and lo pressure turbo. If older turbo adjust your tip
Angle for less impact
Do not sit in one spot