i have the cable and nissan fast software, good fun, also use http://www.techdiag.co.uk/obdscantech/web/pg002.html this one it has a balance test and couple other nicks and tricks
this nistune looks good, looks a way for me to keep the usage of consult with $300 cost for hardware before the tune as opposed to $1000+ for most
what have you done to avoid corrosion etc while awaiting for the engine to go back in and run?