the original post is from 2005. this guy might be retired by now
anyhow the "im in school and should i do controls" posts always get under my skin. choosing controls is not like picking fries with your burger. "doing controls" should be what an accomplished hvac tech or hvac engineer evolves too after paying their dues and spending time in the trenches learning this complex trade.
give me a break and learn some basic building science before you think you can do what i do for a living. talk to me after 20 years in the buisness and maybe i can re-train you. its doubtful but possible.