Depends on K and your DP rate, but my point was that with limited resources you never go beyond 1% on 135 so you’re before the curve inflexion point and you can’t piggy back on a pool progress. That’s why I would recommend 69
I think the least of worries of anyone who intends to use a single device to break either of those puzzles is whether their success rate hangs under the inflexion point or above it

But why is that point even important? I'd think the point of intersection between the two methods is what matters. The different speeds also play a role on how fast you get to where. So it's more complicated.
Oh I agree it’s just a fun math exercise to check at which point one becomes more profitable than the other.