I sent off a set of injectors to Mr. Injector to get cleaned. Very prompt turn around (total time would have been a week on the dot, but shipping got delayed by the holiday).
I haven't installed these yet, but thought I would share some pictures for those who are interested.

At $16/injector it works out to be significantly cheaper than Witchhunter (And yes, the candy did come in the box ).
He apparently managed to get three of them unstuck, but wasn't able to get the third all the way up to full flow. He was kind enough to mention this in an email to me and made certain to package the injector separately (its the non-painted and hosed one to the right).

 

Thanks for posting this. At that price, I am very tempted to ship mine out right away.