Since having a peek at this chart the other day I've become obsessed with renaming arcane trading systems with the names of arcane process', principles, and the uber-geeks who love them. Esp. the uber-geeks who love them. A more useful expenditure of my time I simply cannot imagine. Bravo Mr. McClure, bravo. PS, Which trade system-type do you think might best utilize particle physics as a source for my new and improved nomenclature? OK... I'm going to stop while I'm still ... only this much behind ... How 'much' you ask? Glas you did, for you see if we take N to mean....ok, ok. PS, 'geek', is no longer a pejorative. Indeed it is an entry requirement for every university in the english=speaking world with, 'institute' in it's name.