Hi,

I have one suggestion - now there's possibility to set difficulty increase rate in percent. I think that the difficulty will rise in linear fashion now - the ASIC manufacturers have a constant rate of releasing new devices that depends on their manufacturing capabilities (it doesn't matter if they manufacture them for the customers or for themselves), so the total hashrate will rise linearly (on average). There will be changes in that increase rate - if one of these ASIC companies opens new manufacturing facilities. But it will be still close to linear.

So it would be nice to set daily increase rate (like 1,000,000 increase in difficulty per day). Calculator could suggest the value basing on, say, 7-days average.

P.