I have a neuromuscular problem am looking for the MOST efficient, ergonomic fins to minimize leg spasms and maximize the limited leg strength I have. I have used snorkel fins in the past because they are shorter and light weight. I only dive warm water and travel to the tropics. The SP GO and GO sport seem like good options. Any recommendations for one over the other given my condition? Other suggestions?
The Force Fin Pros or their flying Force are very efficient for flutter kick and easy for frog kick, though not as powerful for frog as other choices. Their general theory is they use the same muscles as you do walking. Power kick on extension, then easy recovery. The foot pocket and blade mean less stress on the ankles. They're very small for travel.
I would not go with the original Force Fins as, to me, they are not powerful enough for scuba. But if your issues is very severe they might be suited. Originals are common on ebay. The pros less often. They're both expensive new.
I've dove Pros for most of my, NorCal, diving with ease for flutter, frog, and back. I now use Hockey which are more powerful and better for technical kicks but not as easy gentle flutter kicking as the Pros, so likely not the thing for you.
Several threads on here about them. Including from some who could not use any other fin due to medical issues. Take care in reading whether people might be describing the originals or the pros in their 'I got some on ebay and they s**k.'. Well if they got the originals, or maybe the tube fishing, yes those are not very powerful at all. And for technical you really want Hockey or Excellerating.
ETA: The flying are a recent tweak to the pros that help stabilize them more during the stroke. That might be nice for you. They are even more expensive. Pros, or maybe for you originals, would be the place to start.