i think MOST people would consider the onyx for medium dry conditions
this greatly depends on how you view amounts of oil at your house... some peoples medium is their heavy.
with that being said there arent many options IMO because todays "low" performance balls still react hard when encountering friction... they just skate more thru the fronts and into the mids.
options I can think of off the top of my head:
visionary b/g centaur
hammer razyr (can have a very strong backend)
any of the new urethanes... (natural, ogre, desperado)
900 global link
and possibly even plastic with a core if they are REALLY toast or you have a lot of revs.
--------------------
tweener
high track with medium revs
medium speed
specs and ball layouts in profile
currently throwing
Visionary (O.P. / O. SS. / Glad S.)
Rotogrip (rogue cell)
lanemasters (black pearl)
