142 recoil
i know you said you are looking at '08 models but i am thinking it is possible that the '09 boards are set up to benefit 6" mounting best. i am not entirely certain that the traditional-mounting inserts on the (2009) recoil are set up for the 8 inch pattern any more. when i look at the PICTURES it looks like the bolts are closer to the 4 hole mounting pack for '09 than '08. i recently sent slingshot an e-mail asking about this as well as other things hopefully they can help us out, or maybe a rep will get on here and tell us for sure, because a picture is just that, a picture.
most of the flex is in the tip and tails. the flex there should not be affected too much by "traditional-mounted" bindings.
---------------------------------------------------
there is a photo of the 08 and 09 side by side on here, at the bottom
http://www.wakeworld.com/MB/Discus/messages/1/654114.html?1230154773 that i posted so you can see what i am talking about