I haven’t experienced much shedding with my smaller Omega boar or the larger Fendrihan boar, which looks very much like a rebranded Omega. For the price, I don’t think you can go wrong with either.
In my experience, the larger synths have lathered MWF quite well. I start by hydrating the puck with some water and then swirl a damp synth to gather some soap. From that point on I face lather, adding water to the brush tip as needed. Builds a good lather fairly quickly. I do have fairly soft water.