My deskey domes and other accessories just came in.
Thanks a lot to all the people that gave me feedbacks in the Topre thread, I could finally take a desision on the domes to buy.
Those are purple domes like many suggested were good in term of weight.
As I wanted something closer to OEM feeling (and not binary tactile) I picked up V3 versions.
Just pressing on the domes alone gave me the impression that I pick the right thing 
Those will be used on one of the two Aquanaut keyboards (link here) that I will manufacture early next year, and will also use URSA keycaps designed by our man @Andreas !