[babyblueoval]

"Slightly more expensive" may be a bit of an understatement.
When Nathan was designing my suspension the Watts Link made it almost $300 more. Watts Link for 12 bolt is about $350
After checking clearances and possible space issues I decided to go with a triangulated 4-link which was a fair amount less expensive and you get basically zero side to side movement as you do with the Watts Link.
Your useage could have space issues with the triangulated so be sure to check it out before you go this route. Make sure you have somewhere for your tanks, exhaust, etc.