i think the nodal ninja was definitely work it... it was a little over $100...
the RRS version is about $405 in order to rotate along both axis. ouch
i have RRS plates and ballhead etc and still opted for the nodal ninja as an inexpensive alternative...
i also shot with the vertical grip attached to my camera. the guys at nodal ninja said it wouldnt work weight and geometry wise but i rigged it to work. i had to invert the horizontal arm in order to give me the length i needed in order to line the center of the lens up with the rotation point.
nodal ninja is releasing a new version very soon so im curious to see how that looks. whats cool is that they offer an upgrade kit to first generation owners so ill be looking for it.
i bought a Kaidan 3 point leveler at a camera shop in boulder. it was on sale for $59 i think and u can tell its been there for awhile... it came in VERY handy. its not picutred in the above pics but heres one below.
kaidan on the right:
