If I already have efi live tunes im happy with and have no gauges yet, if I get an edge cts2 with data log package,I should be able to read codes and clear them and be able to give valuable information to anyone trying to help me with a problem I might have ? I was considering buying an efi v2 to read and clear codes but after talking to one of the vendors here,he told me I might be better off getting the cts and since i told him any future tunes I get would be in house on dyno I would have no need for efi licenses . Would it be advisable to also buy a knock off Tech 2 to assist in trouble shooting ? Thanks for any advice ,and I do know i need gauges , Mike at Greensburg machine already yelled at me LOL.