Just between these two, I would go for the MF-2 package. The SOFT has an advantage of using a knob for aperture control, instead of sliding masks, but it's quite heavy and bulky, to the point where some people are making DIY float blocks to offset its weight. To be sure, the MF-2 + snoot package is fairly substantial too, and it costs a bit more, but you can mount it on top of the camera, alongside your regular strobes, instead of using up a strobe by mounting a snoot on it. I use a Retra LSD + Retra Pro strobes, and it's a bit of a hassle on macro dives to remove a reflector from one of the strobes, clip it off, take the LSD off its clip and mount it on a strobe, then turn off the other strobe and change the settings for a snoot shot - I imagine that if I had an MF-1/MF-2 on the cold shoe instead, I could just turn off the regular strobes to switch to snoot, and would use it more often than I do the LSD.