There is a step test to predict 2k pace in section 12 of the training guide on the UK site.
http://www.concept2.co.uk/guide/pdfs/tr ... ter_12.pdf
(page 12.03)
I did it last night, and it suggests I could go under 1.50/500 for the 2k. The 2k I did in late July was 1.53/500 (7.32)
I know I can go faster than I did, but I'm not sure about a 3 sec/500 improvement.
We'll see.
Tom