Thanks David. I looked carefully at the Ellie ... a lovely plate, actually, and versatile ... but the rubber pads still caused some positioning issues, and I found I couldn't get the vertical segment up against the body where I wanted it without modifying the rods in their adjustment mechanism (one needs to be shortened to allow the base plate to be properly positioned on the narrow 907x base, IMO).
I wrote up my winner on the other thread, repeated here:
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Getting an L-Plate for the Hasselblad 907x that fitted snugly and worked to my satisfaction has been a couple of weeks effort. The 907x' very narrow front-to-back base poses issues that surfaced on the Kirk Photo UL-1 plate due to the thick rubber insert in that plate's base. These were lessened but still apparent on the Three-Legged Thing Ellie (short) plate due to the positioning of the adjustment rails on the vertical support and again due to the rubber pads in the base plate. The Ellie issues could be solved with some simple modifications, but also ordered yet a third plate that looked like it would work...
The Desmond Arca L-Plate DAL-1 solves all the issues: It's a very simple plate, just the L-rails and three laterally oriented attachment slots in the base plate. NO rubber, no adjustments ... It just fits perfectly with the screw for the base in the front-most slot. Because the base is all flat metal and the vertical leg is a simple 90° bend up, the 907x base sits very securely and stably on metal across its width and to the full 14mm depth. Here are some photos:
The really good news is that this is the least expensive of the three L-plates I've experimented with, only $26 delivered from B&H Photo to California:
Desmond DAL-1 L-Plate..
I've tested the DAL-1 on both my Arca-Swiss ball head (as you see in the photos) and on the Peak Design Travel Tripod head (you need to remove the Travel Tripod head's guard screws). Fits perfectly, sits securely and the camera is absolutely level in both orientations to within a degree or so. Setting up the camera on the A-S Monoball P0/P0h in either horizontal or vertical orientation allows for smooth and level panning.
The DAL-1 does not get in the way of reaching the control dial and shutter release, or lens release. Also, the DAL-1's finish is a near perfect match to the color of the 907x Special Edition camera. Definitely my pick of the L-plates!
I'll send the Three-Legged Thing Ellie back for a refund. I've already modified the Kirk Photo plate, so I'll set that aside for some future project.
G