I am still working with the blades that came with my second-hand saw.
One is 1/2" 6tpi, and the other 1" 6tpi. I think the guy bought the 1" for cutting tenons or something.
I haven't done a ton of cutting with the saw yet as I've been mainly repairing my shop floor, but I did fire it up and cut some 'lams' to make a laminated riser.
The 1/2" 6tpi blade was more than sufficient for cutting walnut, Osage, ipe, rosewood, ash, birch from 1/2" to 2 1/2" wide. And for roughing out board staves.
I'm sure a 4tpi or coarser blade would cut faster, but it's not like I'm cutting some large number of laminations, and the finer 6tpi also works well for relatively thin material.
Eventually I will get a very coarse blade for milling logs, and a very fine tooth blade for crafts and modeling and such.