Driving to the beach today saw my first B model. It was on final as I drove by Eglin and they are a stout little airplane
The funny part was a Marine F-18 with full drop tanks (the 35 was bare) was behind it. Doing, as my dad calls it, "watching for parts that fall off".
Anywho if an F-18 needs full drop tanks to stay up with it the entire flight I bet it has a fairly decent combat radius
Actualy, this may of been a refueling-pod equiped super hornet (more likely if this was a two-seater) taging along to "watch for parts fallign off" and to provide the milk bottle when needed, to the untrained eye these look like normal DT pods (and because they're ferrying fuel usually it is carrying a full load of drop tanks in addition to one of these).
If anything I believe the F-35B has the shortest range of all the F-35 variants (less internal capacity) and if I recall it sucks up quite a bit doing the VTOL bit.
Also, and this is pure speculation from me, I don't know if the F-35 has gotten approval for it's own DTs or extra fuel stores, but I do believe it has been (and has been for a while now) aprooved for mid-air refueling.
FWIW, my money is still on the only thing that it beats the F-18 to will be its retirement date.