Does anybody have comments on the special bleeders which let one person bleed the brakes? Do they work well? Are they available in various threads or only one or two?

I have new Willwood calipers on my Cobra which have four bleeders per. Only the two highest will need bleeding if I understand correctly.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.