I typically tune my own stuff, but based on all the positive response I'm leaning towards a tune from Trifecta. However, I'd like to be able to tweak it myself and not have to wait for updates for whatever mods I install. Is this possible if I buy the cable? If so, would it be best for me to purchase the econotune and use that as a base to tweak from? Are all the "Full" tune features available for the econotune?