I'll have to give this a try Bob, as I can honestly say, it looks pretty good and I don't have issue with the use of curd in tikka. I think most of the stuff I've ever eaten was done in curd and only once have I noticed the chalkiness and dryness associated with overuse. I often marinate chicken in milk which has similar function but does not result in the breakdown of the chicken so much. So for those who don't like curd, perhaps a little milk instead would suite, but don't discount Bob's recipe completely.
I haven't tried Blade's tikka yet, but it clearly gets rave review so it will be on the "to do" list. I've just fumbled my way through a version obtained from Ali's videos and the tikka itself turned out pretty good (pics later), and with the assistance off Graeme, was able to produce a pretty good CTM out of half of it.