Re: Which is worse, a CAT that has some hull slap or Mono rolling on the hook?
Plenty of monos with reverse transoms and flattish counters can 'slap' badly too - not usually on the hook but with a stern wind at a dock (or strong tidal infuence spinning you around) and will do it in conditions that would not bother a cat. The noise is irksome to say the least, much more so than the feeling of rolling.
I find I can get comfortable as the boat moves to the swells (within reason), but the slap keeps me awake.
btw Zanshin and JW29 make good points...
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)