Nick I would do a search with pat and johns name under both of these turbos
I know there is maps posted on both of these on the site
BW has the ETT that is suppose to help for spooling
the turbo seems to spool really well for me, it took a bit of tweaking to make it perfect but I like perfect
and enjoy tuning
bang for buck I just can't cough up for the Garret even if they are a lil better jmo
one thing I also like is they are only oil cooled so no pesky water lne to run to the turbo, may not be better but is alot cleaner not needing the water line.
Btw I shift at 3600