Even if it’s not something I’d do myself....... I still to like see what other people try, and how it works out for them.

If a particular engine build plan calls for MW heads, then I’m going to use a MW manifold with them.

If I thought the engine could get by with the std port csa....... I’d use the smaller heads along with the smaller manifold.

About the only time I would do the small intake/big head thing is if I were using a head with the std opening/MW sized port..... like an SR or EZ....... where the port opening is std port size, but once you get into the port 1/2” or so, it opens up to MW size.
I would normally use this configuration with “smaller” ci builds, or milder stroker builds for heavier vehicles where the race type MW single plane intake isn’t a good match for how the car will be used.

Nowadays, it’s basically the same sort of decision for someone deciding on whether or not to use TF 240’s or 270’s.