Thanks by the feedback Leitender,
The mod was made with the intention to have contacts after 10-11m (a short one at this depth).
What type of hydro are you using on your test mission (i mean, GHG, KDB or Balcon)? Probably was the KDB because I made it a bit "deep" because it is at up deck but the game don't uses the boat depth but the object itself. I guess that you understand my point.
I will release a new version with corrected shallow min heigh and please test it again. In some hours today.