i've compared the British Lead and the CL80 pretty extensively--even ran one of each in the same 2x12.
through my Mark V and in a vertical medium-size 2x12, the British Lead was a bit smoother in the highs, with less bite than the CL80, but very similar in the mids and lows--they both had that neutral CL80 type of sound that moltenmetalburn mentioned. the British Lead also might be lower efficiency than the CL80, because the CL80 sounded a bit louder at the same volume level.
since IIRC the Veteran 30 has less upper-mid spike than the V30, it might pair really well with the British Lead because that too has less highs. but maybe not a good pairing with a dark amp or in a dark cab.