My apologies up front as I suspect these two questions have been asked and answered many times. My searching skills leave alot to be desired.
Which book should a new person start out reading? The original SBD book or the newer Supercharged book?
Also do you recommend signing up for the SBD website? It didn't look prohibitly expensive but I don't want to waste the money either if it really won't benefit me.
Thanks in advance for your patients and guidance.