B&M Glissant base do not have slickness at all. At least to me!
A great soap, nice cushion, but not so.. glissant.
The new formula though, excelsior, is great.
Between the Reserve and Glissant, I would prefer the Reserve.
And MdC is a lot better and a lot cheaper soap.
I have about 20 shaves with it and the level is about 2mm under the lid
15 seconds is a really heavy load, it will let you with dry skin, unless we are talking about a silvertip brush without pressing it at all.
MdC needs 0.28gr for 4 passes, where most of the soaps need 1gr and PAA about 4-5gr
And you are not the only one.
If you want slickness from B&M go get excelsior formula.
I think only Vespers have it for now.