Well, I played LHP mainly when a bit of a fattie, I also played 6 when fitter, and when I returned from Loughborough Uni really, really fit., I played 12 in a Jamie Roberts style (in my head) for a team of PE teachers for a while before beer and curry and lack of opposition meant I ended up back as a LHP....
Currently 6-1 and 17 stone - LHP material, THP at a pinch, world's worst 12.......