I use the front brake in turns all the time. Just don't lock it up!
On the other hand, when My front end washed out with the Avon Skid Master, I wasn't on the brake at all. It just ran out of traction, which it did a lot, but this time it went all the way. Jack had the same problem with his, but got rid of the tires before they dumped him. These tires don't require any other outside help, like dirt, wet, sand, or front brakes, to drop you on your butt!
Dunlops have been much kinder! Dunlops may not last as long as the Skid Masters, but who gives a damn as long as they keep the rubber side down.
Bare