With fear of being laughed at, can someone give a step-by-step on adding the new tune/tunes to the SCT. Also, how does one datalog. I have seen the option, but neber tried it; I don't know what I should be looking for. I bought my SCT through Lethal, and have been pleased with the customer service and the tune to date. I chose the Lund 93 Cammed tune, and I am ready to change to a tune without the cammed idle. I was going to go through Lethal, but after reading this, I think I will try JMS. Again, can someone give me a how-to in this? After plugging the SCT into the computer, then what? Do I have to install software first? Thanks in advance, and be easy on the fat kid... lastly, have the issues with timing and knock sensors been addressed, and are there any specifics that I should be asking for or about concerning the tune?