Ed I'm not positive but it looks like the Infinity sled base is aluminum and the woodpecker sled might be made from plastic or phenolic of some type. Personally, I like the Infinity sled design better, looks like it would be easier to change parts between cuts.
That being said if you will not be making a lot of multiple end grain cuts it might be better to make your own sled and save that money for project wood or hardware. When I was in the furniture business we made a sled instead of buying one. We liked different things on different sleds we found and incorporated them into the sled we built. The sled hung on the wall most of the time after we build the project we made it for and after moving to a new shop I don't even know where it ended up. We might have robber the hardware from it for a different purpose.
That being said if you will not be making a lot of multiple end grain cuts it might be better to make your own sled and save that money for project wood or hardware. When I was in the furniture business we made a sled instead of buying one. We liked different things on different sleds we found and incorporated them into the sled we built. The sled hung on the wall most of the time after we build the project we made it for and after moving to a new shop I don't even know where it ended up. We might have robber the hardware from it for a different purpose.
