BM3 CS Flash for F80 barely noticeable?

[numbers201788]

Hi all - I flashed my 2018 M3 to BM3's CS tune. I am risk adverse person, so going Stage 1, 2 is out of the question for me.

For whatever reason, its hard for me to tell the car is flashed. I drove it hard only once. The power feels slightly more linear/smoother but not sure if I'm just regurgitating what I read in these forums. I live in a hot US state, so maybe that impacted engine performance.

I don't have access to a dyno, so I cant see the exact power difference.

Anyone else can barely notice CS flash? Is the GTS better option?

[theweebabySeamus]

The CS file is, I believe, the most mild flash. GTS was noticeable for me but I'd be surprised if the CS added more than 20whp.