The
VoodooLab Sparkle Drive comes to mind 8)
Saying that, i love my stock BD-2, and can not be beaten price wise, IF you buy in SA.
Do NOT overlook Rocktron's Austin Gold OD. (
known to many, as the "poor man's" [read: clever man]
Klon)
http://www.pedalgeek.com/cgi-bin/new_shop.cgi?config=&uid=xNL3jQAA1258770585&uzc=&command=link--agdp
..........................................o0o.........................................
IMHO, the two ultimate OD's, come at a bit of a price, but deff worth looking into !
1) T-Rex Mudhoney (Utoob it)
2) TC Electronics VPD1
http://www.tcelectronic.com/vpd1.asp