Well there is another method of using blocks that I am more familiar with. Yes it starts with a standard block, but then you use a series of short and check measures to get the block "on" before first baste. So it's a bit like direct measures with a little origami.
Yeah, that is much better. I have no "one system" insistence. My attempted point was I think it's best to commit to major alterations from the beginning, before cutting. Once you have a block you know all the properties of you can really go to town on the table and turn it into whatever you want.
Which system do you use Jake? is it self varying or do you have to alter your patterns for attitude after the draught?
It varies. My systems are all hybrid and specific-customer-centric.
The current most common is a direct draft to my own reference lines, with positioning for posture and shoulder angle "fiddled with" at all stages of the process. You could argue attitude is taken into account by measurement also because I focus heavily on front and back scye width and depth (as I'm sure most here do). This is going to be effected a lot by posture. I also often compare my new drafts to my "known blocks" for reference along the way, especially if something is bothering me visually and I don't know exactly why yet.
Basically, "whatever works", but I commit to heavy alteration and big line moves before cutting, and am usually just fiddling with 1/4"s even at the first fitting.