Another feature request: can we get a profit switching threshold?  Suppose I'm using the managed profit miner with a stats pull every 2 minutes, and profit switching every 5 minutes.  Let's say the current best algorithm is Equihash at $3/day.  At the next profit switching interval, Equihash is still at $3/day, but Groestl is at $3.10/day.  Personally, I don't want to profit switch over to Groestl, because the gain in return is not worth the 5-10 second downtime from profit switching.  However, if Groestl were at $4/day, then I'd want to profit switch.  So, if I were able to define my threshold at 25%, i.e. there needs to be at least a 25% difference in price for a swap, then I'd be able to avoid the switches that are -EV.  In our example, at a 25% threshold I wouldn't be profit switching unless Groestl/the current best algo were worth $3.75/day.