I like my bikes to ride a bit more backwheel happy (I’m a skinny whippet type so prefer shorter stays to hold the front wheel up) so I would go for something short travel, steep, short CS for popping (rubbish) manuals with a low BB to keep it a bit more planted in sprints…
If possible I’d kinda like gold lined obscenely-floral (think hetchins) bi-laminate lugs on an Ivy green MTB frame with a drilled BB and wishbone stays,
71/73 with a long toptube to use a 70mm stem and wide flatbars. Low BB (280 or so), supershort chainstays (390-405) for singlespeed, setup for an 80-100mm fork. Trackends. Really low toptube a la Evil/dialled
Current vanity chariot custom is (yes I’m lucky enough to own a custom yin, in yer face) a clearcoated fillet brazed, 69/73 with a medium toptube to use a 90mm stem and wide flatbars. HIGH BB (310mm), supershort chainstays (405mm) for singlespeed, setup for a 130mm fork. Sliding drops, 460mm ST C-T, standard stays and a condor Aero road bridge.
Did that mean anything to anyone? Can you tell I’ve been thinking about this too much?