Lenox Woodmaster CT 1" 1.3 TPI is what I use for making Cypress shingles. I made a sled with an adjustable fence that I can put any taper needed on them. They are pushed through about as fast as I can move the sled. My old sled ran on a 6' T-track, but I have linear bearing rods to make the next one out of if I ever get another shingle job.
From 10' boards on a trailer, with two helpers we could make a pickup load of shingles in a little over an hour. I set up a screamer table saw next to the trailer with a 20 tooth thin rip blade and no fence. One helper handed me a board. I ran it through the saw to rip the sap wood off. Second helper finished the cut and stacked the boards on sawhorses.
Next in line was a 12" miter saw with a 100 tooth blade with the trigger zip tied on. Helper 1 would slide a board through to the stop. With my left hand I slammed the saw down to make the 28" cut and with my right hand pass the piece to helper 2.
Helper 2 stacked the boards next to the big bandsaw. 24" Centauro running 10% overspeed with VFD.
When next stage was loaded. Helper 1 would put a piece on the sled. I'd hold it in place with a strip of wood about like half a pool cue with my right hand and slide the sled through as fast as I could push it with my left hand. Helper 2 took the two shingles off the sled and stacked them in the back of the pickup. Maybe 3 to 4 seconds per 2 shingles.
Don't ask me how many squares, but more than a few per hour.
See Cypress shingles page on my website.