I have an Epsilon with an Optec Leo Focuser. I'm also using a 36mm/7x PlayerOne "Pheonix" EFW, but unfortunately there's not enough space between the focuser and EFW to use the PlayerOne OAG (the barrel of the OAG is too wide).
I'm looking at the Pegasus Indigo as it seems like it should work - does anyone know if the bolt pattern on the Phoenix EFW is compatible with the Indigo?

CS.