ThaLoraxI'd prefer to order the 120 brake for a 116 waisted ski if I can find it, not a 130. That would stick out way too far.
Anyways, the guardians are lighter than the baron/duke, but your suggestion goes in line with what I was thinking already. I do get prodeal on both tyrolia and salomon though, so I could get either the Attack (are you sure that binding has an adjustable AFD/toe piece?) or the Warden. As for boots, I have the Technica Cochise boot, so I can just switch the toe/heel pieces between DIN/tech soles. I'd like to get a better touring specific boot, but I can't find any that fit my foot right (super wide, high instep, narrow heel). I recently got some intuition liners through work for the cochise, and it took at least a pound out of each boot. Those stock liners are so damn heavy.
Out of curiosity, why do you guys suggest the ST for me over the FT? Also, how hard can I ski dynafits? We might be skiing some BC jumps this spring. I've heard they're great for pillows/cliff drops, but is jumping beyond the dynafit capability?
If Radicals come with 120 brakes then get those. I've only seen 130 and 110 but 120 would be better.
The Guardians are ~230 g heavier than the Dukes (2990 vs 2760) with some variation based on sizes. That may not seem like much, but it's almost half the weight of 1 ST binding (~560 g each or 1100 pair). Additionally, you won't be picking up that heavy frame and heelpiece with every step on the STs and the difference becomes clear. I don't meticulously count every gram, but I make an effort to know the general ballpark of what I'm carrying.
I can verify that the Attack has an adjustable AFD. At the SIA demo days this winter, a number of companies (ON3P, Fischer, DPS, etc) put Attack demo bindings in their fleet to accommodate people with touring boots, including my Vulcans. I didn't know that you had Cochise boots. If you don't mind swapping soles a bunch then you could get whatever bindings you want (or keep the Guardians, obviously). The threads in the boot sole are metal so you don't have to worry about stripping them easily. The Cochise doesn't have the biggest cuff pivot in walk mode and you're right that they aren't the lightest boot, but they're a good boot for touring. If they fit well then you may as well use them.
The ST is pretty much the same as the FT. The carbon plate on the FT doesn't really do anything and the difference in heel release values (FT = 12, ST = 10) is small as well. 10 would work for you just fine, and you could lock the toes if you really wanted to stay in the binding (not recommended). The ST is a little lighter and cheaper than the FT. If you wanted to forgo brakes altogether you could get Speed Radicals, which are lighter and cheaper than the ST. It really comes down to what you want to pay for (release value 12 or 10, carbon stiffening plate, brakes).
The Radicals are fine for drops/cliffs/pillows and even for going off a jump, but they might not do so well with spinning off those jumps and drops. It can done and has been many times, but it certainly won't be as good as using a traditional alpine or framed touring binding.