Carbon Fins for a narrow/average foot

[xbuster]

Hi,

Need your advice to choose a carbon fins.
I've average to narrow foot. I'm currently using Beuchat Mundial Competition plastic fins (footpocket is very comfortable for me) and would like to move to the carbon.

I've narrowed my search to the following options:

1. Beuchat footpocket with Bleutec or MTechnic blade
2. C4 carbon fins including C4 footpocket

I'm 187cm, 85kg. Maximum depth 28 meters. I do both swim a lot and deep dives.

If you used same setups/fins I'd like your opinion on it.

Thanks!