800,000 - that's super heavy weight! I've found amounts in the 200,000 to 500,000 range mint quickly after 6 days at '97% probabilities in 24 hours' (see wallet minting tab). I've also had amounts as low as 7,000 minting quickly after 10+ days at an '87% probability of minting after 24 hours'. Whatever the number of days it takes to mint you still get 2% per day for every day taken - 10% for 5 days; 12% for 6 days; 20% for 10 days; and 60% for 30 days, etc.

So far, after the 5 day maturation period, I've never failed to mint within a two week period - touch wood!