When I posted the full-size SRv2 way back in February 09, a lot of people told me that they couldn't make it because of the lack of parts. Well here is the solution! I too have very few yellow connectors, only about 100 yellow and 20 metallic. This gun uses about 85. It isn't as powerful as the full-size version, but not by much.
The Sears mech on this doesn't lift up or push down on the ammo, like on nearly all slingshot guns (including the SRv1). Because of this, it has an incredibly high range.
This has most of KillerK's mods, albiet pulled off in a different way. The handle can now take the entire gun's weight, the stock connection is stronger, the barrel is shorter and uses fewer pieces (obviously).
Video of the full size SRv2, also available on the instructable