i remember those articles. they were so thorough! i think ive got one somewhere on my bookshelf. ill start looking

edit: if you collect more, you gotta share em

edit again: okay i found part five. it talks about picking a turbo and all the math involved. really good article. its 9 pages. btw it says the preceding episodes were in the july, august, september, and october issues from 2001. its late now, so if you want i can scan it tomorrow.