I’ve used my 1296 cheap Yagi a few times and it works nicely for SOTA. (I also go to to measure it one time, so I know how well it works. )
IIRC I’ve seen folks use Kent’s 3 el PCB yagi.
During a zoom meeting, he showed off an 11 element PCB yagi for 1296. Wow. If he sold it, given the square inches (or square mm) and perhaps elevated shipping cost, it wouldn’t be as attractive on price. So, I can’t fault him for not adding that to his store. (How much would he have to sell it for? Is the cheap yagi a better option? Which one would be easier to pack for SOTA? To hold/point/setup on something? Is the gain difference between 3 and 11 elements enough to bother?)
Well the 3 element PCB yagi is very small and I can always carry it.
Compared to the duckie on my Alinco HT it is a HUGE improvement. More elements are always better but it is a lot bigger/longer…so i would have both it they were available and fit in my backpack…the long one for special summits/occasions.
I chatted with Kent about longer PCB antennas in April 2022 and he said he had developed a few for various bands. I think 11 elements would sell well in the SOTA community, although as you say, pricing and shipping to a worldwide customer base could be a problem.
11 elements is not to large that it would not fit inside or on the outside of most rucksacks. Perhaps protected in a PVC tube?
I usually take a standard 28 element yagi to the easier summits.
Maybe if he got enough requests to offer the 11 element version he would?