provoking my memory to something which i thought of last week . . .

Q: is there any value to "grease sealing" the seatpost after the correct ride height is dialed in?

not in a goopy mess way, but a good fingering including the tube slot if applicable, and then wiping all the excess off to a showroom sparkle.

First of all...tone it down, there are children present.
Serious note though, yeah of course grease is a good idea to put on a seat post. It helps reduce water getting into the seat tube and creating corrosion/rust in the tube or bottom bracket.

His moto-style fenders are Rene Herse fenders that have been trimmed a bit.

I had a Schwinn Super Sport with shortie fenders. Neon green. Cool, man. Love it when old ideas recycle. Go Jan.

despite the quibbles, that's where his strength lies. he brings back stuff that few would have the interest or resources to make happen.

and he does cover the bike cultures of Japan & France with equal aplomb.

i need to remind myself of that when my subscription is up for renewal.

Heine is known to be a very strong rider and his times reflect that. Ultra-endurance is a category that hasn’t seen a lot of aero optimization even amongst riders on more conventional bicycles, and there are many factors beyond aero that will save time. For example, an easy-access front bag could well save more time from easily locating items at stops than it costs in aerodynamics.

I could go on for paragraphs about why Jan Heine irks me, but it boils down to an apparent unwillingness to just acknowledge that he likes what he likes. It has to actually be the best stuff. Which leads to years of tests purporting to show that the fastest bike is a round tube, steel frame bike with cantilever brakes and non-aero levers*. I don’t think he’s deliberately cooking the books with his tests, but I also don’t find them at all convincing.

*I’m being a bit hyperbolic here, but I hope I’ve made my point.

SIDEBAR: There’s also an annoying tendency among some people more predisposed to like Jan Heine to credit him with discovery of the arcane truth about wide tires, and even with having been among the influencers that lead to the adoption of wider tires in professional road cycling and the road cycling marketplace. In reality, the rolling resistance benefits of a wider contact patch have been known for literal decades and no performance director at a professional team would’ve been unaware of this fact. The reasons for wider tires finally appearing on road bikes are complicated, but they have to do with disc brakes, tubeless technology, improved aerodynamic testing and design among others, and very little to do with roll down tests published in BQ.

i will admit he's no Peter Weigel.

but when you're good at anything, there's always going to be controversy.