I just got my broadhead yellowjacket target, and shot it ten times with fieldpoints. They were hard to get out, but I managed.
The four sides refers to the two main faces, the largest faces. The other two faces are the smaller ones, on the side.
So, if you were standing over you target, and looking at the handle, then the four sides that are not the handle or the ground side are the four shootable sides.
I am skeptical about it though, shooting it from al four sides.
I just ordered my broadheads and a yellowjacket FP target, and I am looking forward to getting both. I cant wait to sling a Wasp SST at that yellowjacket.

Cause I HATE yellowjackets!