I decided to buy a bunch of extra servos so I could build a fully loaded SIX (or as my 4 year old grand-daughter says "a pretty spider robot"). My local hobby store sells three brands of servos Futaba, HiTec and some unknown generic knock off of the Futaba. I went with a mix of the Futaba and HiTec, got them home and found that the EZ-Bits do not fit without going under the knife for modification because the screws are too short.
For me this was no problem because I am printing my own parts, out comes AutoCad and a couple of modifications and time printing and I am back in business. I shortened the base plate and I also increased the diameter of the screw posts to provide better support as well through the mounting bracket itself. The shaft distance and EZ-Bit mount are the same as the original parts.
I didn't really like the need to cut off the mounting tabs on the servos with the kit because part P24 A-01 cannot rotate with them in place. This renders servos useless for other projects that might require mounting via the brackets. So I have also modified this part so that it will rotate fully without the need to remove the side mounts and gives just a little more clearance for the wires as well. This extension is only 3.5mm, so it only adds just enough to create clearance. I have tried to match the existing chamfers and fillets as close as possible, not 100% pretty but they work.
I have uploaded them here for all to use if you want.