Those pdfs only describe the 7700 and a 7703, no mention of the 7710. Actually I can't find any mention of the BB-7710 on their site at all. Everything else I've seen indicates the 7710 has cartridge bearings. But I am not averse to an Ultegra or 105 BB if that is a more durable choice.

http://www.businesscycles.com/tbb-shim.htm