Today's beta is 310! Yay!!
So, I'm now trying to calculate my doubling times (unfortunately the doubling calculator on betabase.info doesn't work, at least not on my Mac) but I'm not that great at logarithms and exponentials... Exact number will have to wait until I have an Eureka moment or I'll ask a math-wizard, but a rough calculation gives a doubling time of just over 48 hrs.
3rd beta on Thursday.