The latest versions of dovetail saddles from Robin Casady are now shipping. They come in three sizes: 8, 12, and 14 inches long, and will now fit:
Astro-Physics 400GTO, 600EGTO, 900GTO, 1200GTO
Takahashi mounts that use two M8 screws (like the EM200)
Losmandy G-11, and GM-8.
Center and offset mounting holes are supplied for all of these mounts. The offset holes are useful for tail-heavy or camera laden OTAs. Even with a 14" long saddle you can get the tail end of the dovetail bar as close as 4" from the Dec axis of rotation.
The clamp design in my saddles allows for tip-in mounting of the OTA, rather than the awkward threading the dovetail from the end. Each saddle has two 2.5" wide clamps at the extreme ends of the saddle for excellent support of the dovetail bar.
Also check out the new tandem scope setups.