'dat581' on another thread this reply by 'Engines' seems to be a good one (carbon brakes etc.) although your other concerns not answered:
http://www.pprune.org/military-aircr...ml#post7160694
I'll guess that earlier concerns in 2010-11 have been fixed? Lots of aircraft at Eglin AFB now with no concerns about wet runways voiced so far....
DOD PROGRAMS F-35 Joint Strike Fighter (JSF) page 6
http://www.dote.osd.mil/pub/reports/...2011f35jsf.pdf
"... - The program previously discovered deficient aircraft braking performance during landing on wet runway surfaces. The program tested new brake control unit hardware and software intended to improve performance. The program accelerated testing of the capability to stop the aircraft after landing on wet runway surfaces to 2011 to support the military flight release for aircraft ferried to the training center [Eglin AFB coastal subtropical wetness?]. Changes to the wheel brake controller improved this capability, but the program has not determined if the deficiency is resolved. Effective use of the latest design depends on the adequacy of simulations used to train pilots in maintaining directional control while activating differential braking.
This requires precise control of brake pedal deflection, [twas ever thus - try braking an A4G on a wet 6,000 foot runway] which will be difficult if not impossible during non-instrumented flight...."