[Maple]

If you're filling the domes I'd say it's time. That's when everyone seems to move to the next one. It's up to you though I guess.

Thank you very much for your advice. I'll be visiting the NB site then! I was indeed wondering if, by reaching the maximum capacity of the domes and thus preventing further pumping, I'm stopping any greater size increase that there could possibly already be potential for. It would do no harm to get the next size, and it's certainly an encouraging step for me. How long did it take you to get swelling, and did it initially go down quickly?