I didn't say they were all good choices but was trying to show that there are choices available in 650a. There is some belief by many on this forum that 650a is not a decent candidate for a 27" or 700c conversion, but it is a viable low cost alternative due to the readily available tires and rims in that size.
This is my argument, with me, it is always about the cost.
In converting a 27 x 1 1/4" frame, I worked out that no brakes would reach to 650b without having studs brazed on, which was a non-starter.
Converting to 650a went very well with inexpensive Tektro brakes, and an inexpensive all-alloy wheel set.
The Kenda tires are good enough for my use. I am saving for a set of CDLV, and agree, they seem to be the best to be had for 650a.