Thanks for the info. It was enough to persuade me to buy the standard size which arrived today.I'm 192 and 92kgs. The standard Jazzlab is just fine
I'm responding in case it might be of help to anyone in a similar state of uncertainty at some point in the future:
So far I'm very pleased with it. At a little over 6'4"(193cm-ish) and probably around 85-90kg I can say the medium (standard) is the right choice. Using it with a tenor there's still about 1/3 of the length of the cord that came fitted still to play with.
