Jet fins with Otter (or DUI) rock boots

Any advice re jet fins with size 10 (US) Otter Rock Boots (or DUI size 10-10.5 US)

My old jetfins (Divex) are too small (mainly in height of the foot pocket).

The fin doesn't go far enough up the boot and results in cramping.

Any thoughts welcome.
Thanks,
Ben "Seal diver"
www.youtube.com/bburville

What size fins are you diving now? I'm not super familiar with Rock Boots, but I know that XL Jets took my Size 10 Chuck T's over a Fusion drysuit well. Better than the Chucks, which gave out after 30-40 dives .

Some people complain that Jet Fins aren't very comfortable due to the foot pocket design. I am now using Hollis F1s which have a more ergonomically designed foot pocket while still featuring a lot of the control and power that the Jets are known for. Your best bet, however, is to go into a dive shop that features fins you are looking at buying with the footwear you plan on using and trying it all on together.

Peace,
Greg

XL sounds about right