I don't like to be ignored either. I came the same day Mahndo left after waiting 30-45 mins. I left a note with name and number but no one even called me back. I was completely ignored. I found a class over at The Corona Heritage Park in Corona instead. Their instructor answers when I call or text. Nice to be acknowledged! Going to finish beginning and take advantage of the key access in their intermediate class.
Drilling a precisely positioned, deep, wide hole isn't easy, without a drill press. So I bought a WolfCraft drill guide. After experimenting with it, and drilling some test holes, I build a jig around it. I screwed it to a scrap of MDF, and then drilled a carefully-centered 3/4" hole. The MDF can be clamped more easily than the base itself, and the 3/4" hole will keep a 3/4" Forstner bit drilling precisely where it is supposed to.