I like to think I prefer tip up carry although my two EDCs are a BM 941D2CF and a Microtech Socom Elite, so obviously I'll go both ways, (at least on a pocketknife).
I've been looking at the Buck Mayo pretty hard, at least online as I can't find one in a retail store to fondle. I really like the idea of a framelock in that size. I used to EDC a small Sebbie and loved it until I lost it. The Mayo is about the same size and materials, but I'm just not sure about a tip down carry in that size.
The 941Ti is certainly interesting. I really love that design and at one time owned five different variants of the 941 (but I'm better now...

). I've settled on a 941 D2CF for EDC and a 941BC1 with the red handle just to keep in the safe and look at..

I will say that the handle on the CF version will flex laterally a bit more than my aluminum handled one, but the carbon feels much more organic in my hand than the aluminum. It doesn't get that cold feeling. I guess the Ti would give you the lightness of the carbon with the rigidity of the aluminum, but it would still probably be a little cold to hold.
When you get right down to it, I think we probably both really need to own a Buck Mayo and a 941Ti.
jmx