If you want saddle because that's what you have, don't worry, two saddles fit it the standard single lipo tray end to end. This is how my car runs because I had a saddle B44 and didn't want to buy new cells. The Cougar does not need the saddle conversion. It is spot on in normal short chassis stick form with added weight
I made a .75mm brass under tray that adds 135gram plus 20 gram under the servo, 5 hole shocks 40/35 oil. My car is fantastic