Marlow 65' seatrial vibration

Stumbled up on this thread on the underwater exhaust issues and similar to Pascal's exhaust fix. Sounds a bit complicated makes me wary of buying a boat with this type of exhaust. Thought this might be of interest and it did not show up in my search results.
http://www.yachtforums.com/threads/opinions-for-underwater-exhaust-deflectors.8200/

Well, we rejected the Marlow 65, because of obvious vibration problems during seatrial along with other problems in the survey's. The boat was advertised as having many recent updates and engines just serviced ready to cruise. Not! After looking thru records all listed recent updates were 2012 thru 2014. Found out the boat has been on the market for 2 1/2 yrs. and sitting at their dock for 2yrs. The only "engine service just done" consisted of an oil change over a two year period. There was deferred engine and generator maintenance including 3000 hr. , heat exchangers, coolers, gen water pumps, and etc. for about 2 1/2 years. The boat was hauled on a Friday by request of the owner, blocked and pressure washed plus some work for the owner and left out until survey on Monday, but we were billed $15 per ft. for the haulout! We did not see the boat wet and in actual condition. Before haulout they needed to put 200 gallons of fuel on the boat and did not do a quick run to check the boat which would have discovered the problems and postponed the haulout/sea trial. The hull surveyor was on their list and hired because he claimed to have surveyed three Marlow's, his survey consisted of "eight whole pages". Also, the tender was sitting on a trailer with the carb's removed and serious damage to the fiberglass transom, of course they did offer to give a small credit towards a new one. lol!! There is more but enough said. The boat was misrepresented and not ready for a sea trial. We appreciate all the comments and feed back which helped make a informed decision. Needless to say there will not be a Marlow in our future.

Brokerage was maintaining the boat. I am sure the owner had to approve wo's. I inquired why they deferred maintenance and was told it was held off because of starting the clock on scheduled maintenance. I would say that method backfired. Fact is, a boat of that level should have been exercised often enough to know the condition. The vibration problems did not happen overnight, which was my major concern and there are numerous comments on this forum about Marlow vibration problems. It was an early model and I figured they were still practicing.The $40k engine work needed would put them back in order. Nothing more than another mishandled botched boat deal.

Great idea, I have done that before, but some do not want to bother for a quick trial run. This might be my rule #1 in the future, even worth paying fuel to avert aborting a seatrial/survey with a lot of expense.

Yessir!