I just started postprocessing for 12,232+. I don't yet have the matrix size, but I expect it to be around 11 million by 11 million elements and to take about 3 weeks or so to solve. The sieving of 12,233- is nearing completion. The next two projects 2,851+ and 2,853+ are nearly the same difficulty, so we will investigate the effect that increasing the large primes from 30-bits to 31-bits has on the size of the final matrix.