I stand by what I said earlier, 10 AWG wire will probably work for jump starting an ST. Yes it is usually rated at 30 amps, but as I mentioned using a short piece under 2' with care for jump starting should be fine. How long do you usually crank your bike? My ST always started right up - cranking for fewer than 5 seconds. My Suzi seems to start almost with the first rev of the crank (same with our Honda and Toyota cars). Pulling 90 amps or so through a piece of 10 wire for 10 seconds will be ok. Would I use #10 wire to jump my bike? No. If I had nothing else at hand, would I? Yes. The SAE connector for sure will not handle starting current, so that accesory should be used for its intended purpose.
When I made those pigtails (essentially what Scosche is selling without their adapter) I used welding cable. This is made up of very fine wires and has a lower resistance than solid wire or regular stranded wire. It is also very flexible. Look at the woven ground strap on your car - there are solid reasons why manufacturers used this material instead of a cable. My #6 wires should hold up for as long as I want to crank the engine. Note that doing that for more than 30 or 60 seconds may damage (overheat) your starter motor.
There are a lot of jump starters on the market. I have not tested nor even compared any of them to one another. However, some testing organizations HAVE done this, and it sounds like there are small differences between them. I suggest anyone read Consumer Reports article and the Wirecutter's reccomendations. The latter pointed out something I thought was a problem with the CR findings, and I went with their suggested jump starter.
Permanent connection to the battery? In my experience, these dodads are not where you want them when you need them. I plan to carry the jump starter in my bike OR my car for trips. For the few times I've jumped a car or bike in my lifetime, I'll connect the alligator clips (which is why I thought the Wirecutter had a convincing argument).
