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@Steve W. Likes double cleans, maybe because you can go heavier than single bell snatches?
Yes, I like double cleans because:
--You can overload the ballistic hinge without going to expensive monster bells, or buying or making a separate apparatus for heavy swings.
--The cumulative time zipped up in the rack leaves me feeling tied together and carries over to presses and double front squats.
--They feel very natural to me and I enjoy doing them, much more than double (two bell) swings, double snatches, or two-arm swings.
--I find they make a great complement to single snatches with the same size bell, and snatches seem to fly up when I've been practicing a lot of double cleans.
IMO, the double snatch is kind of a specialized exercise. You really have to lower the bells to the rack between reps, so the drop is like a double clean anyway, each rep takes a lot longer than single snatches, double cleans, or any type of swing, and there is more local muscular fatigue in the arms and shoulders (Neither side ever gets a set off as in alternating sets of single snatches). So I don't think they are as suited for high volume training. I also don't really enjoy them as much as single snatches.
Personally, I always prefer snatches and cleans over swings. I like the sense of completion at the top of each rep and the benefits of spending a lot of cumulative time zipped up in the lockout or rack position.
If you are just looking at swings, one-arm swings vs heavier two-arm swings is a legit question. I personally prefer gripping a KB with one arm for everything except goblet squats. Two-arm swings feel constricting to me both in terms of space on the KB handle and arm position (and I'm not a big guy). Staying squared up during one-arm swings makes me feel more tied together, and I kind of like the fact that grip is usually a limiting factor, for the grip strength development, but even more for autoregulation of progress.
I know some people just want to put two arms on the bell and swing heavier, and I don't think that's necessarily wrong, but in my personal practice, that need is filled by snatches (larger ROM = more potential energy to absorb/more kinetic energy to generate) and double cleans (larger mass = more potential energy to absorb/more kinetic energy to generate).