As a neophyte I think I have it figured out, and then when I try it the problems and questions start. Drilling a cylinder on TDC was an interesting problem, and then drilling it again at 90 degrees was a challenge. Sounds easy enough unless you want it done accurately. I searched around on the internet and Youtube and didn't find much about drilling on cylinders/tubes.
Got it done. More experience. Man, this thing better be quiet: