Also, solo mining going after the big prize is an absolutely stupid idea. No guarantee you ever even find one before your hardware dies at this point, mining pools with more regular block solves with small payouts usually on the regular will actually work up to more than what you'd likely ever earn solo. When odds are mining a solo block perhaps once every 24 hours, that's decent odds because over the long-haul, you'd average that. But now when solo mining just about anything tends to mean odds starting in weeks and ending years, you may very well average out to having been paid out as much as you would have earned if you actually mined a block as often as odds say you would. But if the odds say every few months, you could easily go a year with nothing, and then maybe a year with two, and then a year with nothing, and then one or two a year for a couple years... and that's not factoring in difficulty scaling - your "months" that didn't produce anything for the first year could suddenly turn into odds of solving a block once a year, and that could change before the end of a single year as it is.