The way we do them is to lay out your cut lines. Cut them with a normal circular saw on the lines. Finish the cuts with a saws all, being careful not to mar the finished side of the cut. Don't let the blade come out the opposite side of the cut. Depending on the application we then scarf out the back of the cuts and sand finish edges if req'd. We have done beams that weighed 1500 lbs and had to have a crane flip them so we could cut the other side. Basically timber framing technique. Practice on a scrap first. We can get very accurate cuts this way. We have tried the beam saw, not very accurate with the large blade. Bandsaw isn't any use to you on large material that you have to manhandle. Good luck.
I believe this to be the best method as well.I think this is the best advise posted so far. :thumbsup:
Even a decent handsaw to finish up the circular saws BM cuts is not that labor intensive. If I had to really bang out a bunch, on a regular basis, I'd look for a tool or a shop.
For On-Pitch Head Cuts, nothing beats the Big Foot Swing Table on a chainsaw. I've had great results against a fence. And always cut the Heads first with the Big Ft, then measure.