...
No #xnsub should work with degraded hashrate. You just cannot switch coins fast enough without this, it is what it is.
The 'switching' speed requirement of #xnsub is FUD.
Craphash takes an extra 2-3% on top of the 3% they charge everyone, and thus any ridiculous belief that handling a work change faster requires hiding what it is doing, and allowing it to mine anything and everything and avoiding the coinbase security requirement of cgminer, is false.
If you properly monitor the work you get when you order hash rate on Craphash you
will not get 3% less than you pay for, it will be between 5% and 6% less.