Leaderfins Ice with C4 400 Footpockets

Just "build" a new pair of fins and wanted to share my experience with pairing Leaderfins Ice blades with C4 400 footpockets.

TLDR: glued them and it seems fine. Maybe should have gone for the C4 adapter set and mounting screws though, would make it easily replaceable, but adds ~25€ per fin.

Started with the blades, here compared to my Ultrafins speedy

Then got the footpocket


and fitted on the fin to see if it works


Which showed me that I had to either cut the rails of the blade or cut the footpocket. I decided to scrape off the rails as far as needed.

The next step was to put the blade in the pocket and glue it with super glue aka cyanoacrylate. I glued it on the bottom and top and after that the rails by dripping in some from the top.
The issue is that the gaps seem to be quite big, so I'll have to see if it actually holds.
The final result looks quite:

Unfortunately didn't get too dive much with them yet, Y40, few times Lake. So far they are holding up fine, probably shouldn't remove too much of the ribs so that it tight enough.
A possible solution for you would be to get the c4 adapter kit, like this https://www.spearfishingworld.com/C4-300-Foot-Pocket-Adapter-Kit.html . Then you can glue on the C4 rails and hook the footpocket onto that. I was actually thinking about doing it with that, but was too expensive if it works with glue only.