We had the S41 on KAD 300's. An amazing boat, so much volume and interior space. Rather better inside than the S48 we moved to, the latter being hampered by mid engines (TAMD 74p) and shaft drive (a fantastic, strong, heavy weather boat though)
We did suffer from some of the annoying chine riding traits found in the S41, which could be scary, but cured, I believe, by a slight chine redesign on the S42.
You will love this boat, I promise you!