Installed mine just like you stated. My greatest concern was having to cut the bow rail. Now that it is done I have no regrets at all. The only thing about my Rhodan is the manual deploying but then that is why I take along the young ones.
I had same problem with my 1999 2320. I took out small screen that was in my vent pipe and now all is good. Would not have believed that the screen made that much difference but it did.
I had similar problems with my 1999 2320. Took out screen from my vent and now have no problems. Screen was not clogged but that small resistance had to be the problem.
1999 Parker Sport Cabin 2320DV. After 20 some years boat meets all my needs and still cleans up over winter to look brand new. The quality shines through.