Well, as an update, I finished the first of my six hemlock arrows. Cut them into 3/8" square stock, then planed and sanded to about 3/8" diameter. The one I finished was 33" long.
I shot it out of my newly finished 58# chokecherry bow, and WOW oh WOW...I couldn't believe how fast it lept from the bow string. I shot it without any point, just a flush cut wood end, and it stuck 1/2" into my 3/4" thick plywood target backing! It's way faster than the aluminum 2216 eastons I was using. I haven't spined them, but will get around to that eventually.
No pictures, but I did use pigeon feathers for fletching, and all 3 fletches are almost destroyed after 4 shots (it's dark here right now and I was scared I'd lose the arrow in the snow).
I will be making many more of these I think, just with better fletching. I bought the hemlock trim at Home Depot, 3/8" thick by 1.5" wide. Super straight grain, running the full length of the shafts.
I think I'm hooked!
Thanks for all the help!
D