That's an interesting suggestion - although they are high performance jets, would it make Recon a bit OP? It's seen it used so rarely (and I'm relatively new to BF) i've no real basis for comparison.
Also is there technical trickiness having weapons restrictions set up slot by slot as opposed to for everything on the warehouse? e.g. some Migs are full loadout others are recon only....
I certainly think recon airframes being able to carry full blown strike/CAP loadouts would be OP.
Hence why I thought the l39 - it's not got a RWR, easy to limit loadouts, not crazy fast or anything. I quite like the vulnerability of a recon flight in concept.....
Also 2.5.1 rocks my world, 20 min server join times down to 2 min :D