I too highly respect IO540 for his knowledge and his actual private flying. I've met him in person here in Holland and he is real...
Rarely have a met such a knowledgeable GA pilot outside the ranks of old CFI's.
What's more , he is not afraid of saying things how he perceives them, and that makes his suggestions as to what kit works and what kit does not work a lot more valuable than the middle grey evaluations of commercial advertorial magazines.....
It's not without reason that I keep thinking that if IO540 were to start a blog, a lot of GA pilots would do well to subscribe, as we are short in our little hobby club of tested worthwhile opinions of people not afraid to speak their mind without falling in that PPRUNE trap: becoming pedants....