I’ve used both the shave dash samples as well as the full tub version of Felce. Be sure and load the brush well using the sample to ensure you’re giving the soap a fair shake. As I’m sure you know, sample sizes of these hard soaps can be a bit trickier than the full sized variant. I think you’ll be very pleased! I have tried most SV scents and Felce is terrific. Hopefully not too strong for your liking.
What I do with samples, is mould them into the bottom of a ramekin type pot, so there's a decent surface area to work on. I've done this with all the medium firm to hard soap samples, and it worked a treat.
In fact it worked so well, I ended up duplicating it with my regular soaps. I now dispense about 20g or so at a time into that same pot, and either refil with the same, or break off onto one of the samples for a change, before going back to the regular stuff.
As it's just a thin layer in the bottom of the deep pot, I don't get the wastage of the initial lather running over the sides. It all stays in there and continues to build. I think the days of me putting whole soaps out in the bathroom are now gone.