the amount of coins paid out needs to be upped. I mean for 5 rigs each approx 300ppd you are getting perhaps 15 coins a day? how can 1 btc donation get you 700 days mining ? crazy.
I suggest amount of cure coins x 10 now and up the coins per day paid out.
Your numbers are way off. I got ~24.7 CURE for one day with 120k PPD. You should be able to get over 250 CURE with 1.5M PPD. With that rate it would take ~40 days to get 10k CURE.
Not sure where you get the 15/day number from, or 700 days.