Makes me wonder if it is an issue with the tune or the ECU. Heard good things about the Viper tune early on, so I wonder if the file could have gotten corrupted? You might try messaging Nubcake, he knows a lot about the ECU's, I'm using one of his tunes for the 6spd conversion. He customizes it by sending you a baseline and then you send him ME7 logs (a lot more info in the ME7 logs than Vagcom) and he reads them and sends you a new tune. I had a few issues (boost leak) so it took me about 6 tunes but now it is wonderful. So much Torque with the 6spd it engages the ESP a lot when wet at higher speeds.