It being dead on shouldnt matter. If used for tuning who cares. for example if you find out standing on ur head while u burp it and gain 2DB. You should gain the same or close on the TL.
its all depends on placement. I had one indash under the deck. It was 6db higher then the TL on the dash. It would be nice to do a comparison having both placed in the same location. Oh thing is the epic only measures Full DB's.
Dont know if you know this or not so I will post it. The power monitors are currently on sale for 199 til the end of the year. Just ordered mine today.
How is the compitition Only format as far as being competitive? From what I see its broke down to 4ohm power ratings, and vehicle type. No woofer breakdown?