Valve adjustment.......

LOL even a slant six guy can do it. Did it that way since I was 19 and that was a long time ago. Did it that way at the dealers on a major tune up through the 70's. We are talking stock interference adjusters, not adjusters with lock nuts. Yours and my idea of a "decent engine" is probably different. Six of one half a dozen of the other. Do it any way you want, no need for negative comments or trying to puff yourself up.
I don't think you'd like doing it running on my slant six. It has a very rough idle. I agree with you though. I have no negative comments about how anyone does it. Just adjust them how you're used to doing it.