well I compared it with my virtual gravity and virtual energy and I was able to move pretty far in with the VG and the full swing didn't have the guts to make it back. After about 4 shots with the VG an area was created and the full swing was able to handle that same track. I base my opinion on what I saw the different equipment do. It didn't skate in the oil but also didn't dance in like the VG did either.
As for comparing it to the Jigsaw, I didn't throw the jigsaw myself but my friend threw that and the full swing and the full swing was easily stronger than the Jigsaw. I was unimpressed with the Hammer equipment overall so i would agree with your comparison of the FS to the Jigsaw.
I'd be willing to bet though on fresh shots of longer heavier oil you'll see more movement and recovery from a virtual gravity or Bounty Hunter than you would with the Full swing. But after 4 frames or so and there's a track, I bet it'd be great. My 2 cents from what I saw, take it for what it's worth.