I was wondering if there was an ETA for double-checking the remaining exponents up to 57885161 (the exponent of the 48th known Mersenne prime, but not yet known to be the 48th Mersenne prime because of exponents not yet double-checked).

By looking at the

Exponent Status Distribution page, I did a BOTE calculation. I tried adding (approximately, since I was doing it by sight) the assigned and available DC's, and dividing by the current rate of clearing 175 DC's per day.

I got something around two and a half years. I might have screwed up the arithmetic, but is the method reasonable?