After about interviewing 6 builders, I've decided to take the owner builder route. I'm planning on a freeform gunite or shotcrete pool roughly 15x30 with attached spa raised 18". Thinking maybe 3.5 to 6 feet deep. I have fair construction knowledge and feel confident I can get this done. I do have lot's of questions though so bear with me. I'll do my best to search previous posts but as we are hoping to be swimming this summer I'll probably ask a few questions that have been discussed numerous times. I've contacted quite a few subs which referred me to other trades. I would like to stick with subs that are familiar with each other. I was hoping for some tips on what kind of questions to ask each trade other than insurance and workman's comp type questions. I'll be meeting with an excavator today who was recommended by a long time established gunite co. Any critical questions for the excavator? Thanks alot, Mike.