Thank you for your support. Is VicoVation's pleasure to provide service to you.
For these two FW (English version 5.1i & 6.6+ CS), there are a lot different opinions. And VicoVation appreciate all the suggestions.
We basically let users choose the one the they think it's proper for their cars.
for example, in Taiwan, people like 6.6 CS version. So does Thailand market.
And we know that for some market, users prefer old FW with WDR adjustable.
Users can definitely feel free to choose the one that they like most.
And if you need, we can also send you the previous FW file so that you can operate your TF2+ with old FW.
Your recommendation is definitely important and will be passed to all our R&D team.
We hope our new Marcus series will meet you demand and provide you a brand-new experience.
Thank you very much. If there is anything we can help, please kindly advise.
All the best.