Whys so scared? Try it within your own wallet, between addresses. You're your own mixing service now! And it's lightning fast (not a 24-48 hour wait like DarkSend running through the Masternode network.)
DS isn't that slow as you claim.
It should take few hours at worst if you use 8 rounds denom..
DarkSend also uses pre-mixing.
Coins are mixed whenever you want, not just when you want to spend. Anon is on-tap.