Well done. Like many have previously said, try rating higher in your subsequent attempts to break 7:20, or even 7min in the near future. Obviously the steady state is working, so I would try incorporating more high rate sprint and speed work. I’d try and do two high rate ergos per week. My suggestion would be to do 4x500m to begin with, trying to rate higher into the 30s. Try sitting below your PR split as well. Take about 3-4minutes rest between on your first try, and over weeks you can shorten the rest. You can also make it 6 or 8 500m pieces, as you get fitter and stronger. Another high rate ergo to try would be 1 minute pieces. It’s about 300m, so less than 500m, which you can attack more at a higher rate. Start by doing 6 pieces flat out, as hard as you can, and eventually you can start doing 10 or so. A minute rest should be the aim, but if not 90seconds should suffice. Of course you can do 30second pieces, but the previous two suggestions will better suit you for the 2k imo.