Thanks for the encouraging comments. I agree the rhythm is indeed very subtle in this piece, even more so when a slower tempo is taken, as i have done. I recorded the same piece 10 days later on the same piano, different mike set-up, and a slightly different interpretation, with a slightly faster tempo at the start. I'll post it later when I get back.
As for the piano, its a 7 foot Ibach grand, a German instrument. The bright, slightly metallic tone is beautiful, although it had to be muted somewhat with the use of the una-corda to get the sound you hear on this recording. I like to experiment around with pedal effects. I think of it as compensating for my lack of mechanical ability!
My injury has been there since I was 14 (I am 29 now). Am thinking of going for a hand surgery to get the problem rectified, but it does involve risks. In the meanwhile, I try my best at music which is less physically demanding, but focus a great deal on phrasing, tone and musical ideas.