Hiya domsko, yes I would agree with you and Bernstein that reducing carbs right down is a great way to effectively improve control. I need to get around to getting his book because although I tend to go more towards low carb since reading his website and chatting around here, I'd like to find out what else he has to say about it all.
As for Dafne, I havn't done it and I must admit I didn't realise there was a thrust of "all you can eat" mentality. I assumed they were at least sensible with carbs. Tsk tsk. Carb counting and I:C ratio dosaging in itself is the way to go though, so in that sense it gets it right. Although, we have just had a members go through a Dafne course and have the educators insist a "one size fits all" I:C ratio. Which is complete and utter madness. So I'd tend to agree that Dafne seems very dubious indeed for a few reasons.
As for the Glycomark testing, never heard of it I'm afraid.
Another method of seperating basal issues from bolus issues is basal testing. Here's a great article written on Basal testing and MDI.
Basal Testing for MDI - Diabetes Daily Forum
Ever considered or looked into a pump? I get the feeling it may be worth looking into for you. Many of us find they are wonderful things to improve control.