[Gus64]

Ah ok, thanks! I will try more cuts on the sample piece in the pic. Just trying to see if there's a trick to it!

 

[Gus64]

Yes, these posts sure are heavy and I can't see balancing them on my portable table saw or miter saw. Will try the circular saw method on a scrap piece and see what happens.

 

[Gus64]

Will-do!

 

[Gus64]

Well, I managed to make the cuts with a handheld circular saw. Used a framing square as a guide and a scrap piece of 6x6 as a base which I clamped (and moved each cut). One thing I should have done was make these cuts before I installed the posts into the ground: would have been easier and safer to use the saw making the cuts with the 6x6s laying flat on the ground. Live and learn I guess! Thanks everyone for the suggestions on how to make these cuts!