There is always some amount of risk involved. I have had mine tuned for 6K miles on 150 or 200 all the time, I usually get after it everytime I drive. I have towed 15K for half of those miles on the same tunes. I just keep my foot out of it.
Ya feel great, well I fell ok i guess little disappointed in Nyquil. It doesn't smell very good really, been starring at the bottle and googling it on webmd for a few months thinking about trying it. The side effects really have me concerned.
Sounds to me like you should leave it alone. That is a lot of posting explaining your concern and disappointment. I EZ'd mine with 1000 miles on my truck with no issues.