The SB Pro was shit..the materials used were horrible, but the SB V2 was a lot better...chassis still flexed like crazy though...
One of my mate's just got himself the SB V2 Pro...for the price he paid i would have to say it's a great buy. The arms and shock towers are moulded with a new stronger material and the metal parts like the outdrives, cvds...etc are tougher too...Even the carbon fibre used are of better quality...for the price..it's really a bargain..but i still do not like the shocks...As for the Lazer ZXS...it's really a great designed buggy...the Japanese Kyosho team ran the prototypes as early as 1994..the first production model was released in 1996 followed by the ZXS EVO in 2002...ZXS were used by Japanese team Kyosho drivers all the way up till late 2004...and in every Japanese national..there are always ZXS making into the A main...Overall the ZXS is a great buggy. Most of the current stable of pro spec 4wd buggies in the market are great buggies...i like all of them. Some have condemned the ZX5...i had one before...it's a pretty good buggy, the only let down were the materials used...but for that price..there's nothing much to complain about. Personally there is no such thing as the best 4wd buggy, the best buggy is the one that works best for you....