Aren't guys to impatient topractice? Iknow I am.
I have a few angle grinders and my preference is Makita.
I mastered the technique of using one on every cut there was in a wet-room and ended up hardly doing without it.
Good diamond blade, the easier it is. The rest is just practice..... as with anything.
And no, I am not a profesional either, its hard enough to do a few times a year, let alone every day.