Scarily, in my very short career as a PPL so far, I seem to have been to the majority of the fields mentioned.
Can confirm all of them, erm, actively engaged in the T/O & landing processes
in their own special ways, but none more so that whatever runway at WW FFF's Europa touched down on several times per circuit when I went along with him recently. The problem seemed to be exacerbated by the fact the the bumps were
frozen and thus providing us with what seemed to be perfectly elastic collisions! Ah well, if that's what he enjoys...
To adapt Pinkster's mantra - grass is good, except on cold January mornings...
(ps - agree with phnuff re. Clacton)