Strads...? No!
For a cornet player playing trumpet, you'll want to steer clear of the big stuff, they take some blowing and high reg. tuning is difficult. Have a go on the lighweight ML bore horns, i.e. Yamahas, Schilke, Stomvi, etc. These instruments will give you the agility and response that your used to from a cornet without too much extra effort. Some of the older US trumpets can v. good esp. Olds Recording ( a gem ) / Special / Super, King (silversonic, a cracker ), Getzen (eterna), Conn ( not Constellation, itsa whopper ). The 'Jazz' models are perhaps a bit on the small side, e.g. Yamaha 'Bobby Shew', and give a thin, insubstantial sound.
The Stomvi Elite range has lightweight ML model with reverse lead pipe option which I've tried. I was very suprised by how responsive and agile this horn was, nice and cheap too. It doesn't like to be honked too much, a bit disappointing for big/dance band lead work or 'loud' orchestral stuff, but fantastic for 'light' orch. or quintet/small ens. work. ( The Stomvi Elite D/Eb is an absolute gem. I've got one and it's the mutt's nutts!)
Correction:-
Mike Saville wrote:-
This is the Holton ST302 MF2 model - very large bore - very good if you're playing lead trumpet in a big band but doesn't help your tuning too much if you're playing straight stuff.
I wish to correct my brother's earlier posting regarding the Holton 'Maynard Ferguson'. Holton have, in the past, produced a few MF designed horns, the 'MF2' only being one of about a dozen. ( He designs a new one when he misses top C, (not that one, octave higher!!)) The latest is the MF8, ST308 and the student version ST550, the bores sizes are coming down a bit now, well he is 75!! Some of the MF Horns have names like 'Admiral' and 'Bluebird', which is nice. I've actually got the MF2, I think my brother was describing my playing in his post, cheeky bastard!!