All of the wires, cables, etc on my 280 are run through a hole in the upper rear (starboard side) bulkhead and completely sealed with a huge glob of silicone. You can easily see that access from the ER. So this was definitely an 'after factory' route. Good thing you found it as gasses/fumes from...
That'll make a big difference to your dock neighbors when you flush the head, however may not be the source of bilge odor. The sealant used should have completely dried by now so it shouldn't be coming from there.
Outside of leaking fuel: The two sources I can think of are: excessive...
Great boat. I have an 05 with 5.0's and B-3s. A very comfortable boat for us on the Great Lakes. The only two things we don't care for (dislike is too harsh) is the single helm seat vs. double and the size of the fuel tank.
The handling will take a bit of getting use to from a tri toon, but...
My comment would be if the bottle hasn't been inspected in a while you should probably have it checked. Mine was well in the green but they weighed it it indicated only 50% which means it failed.
The pressure gauge on my sea fire bottle was in the green but when they inspected it the weight was at 50% off the specs. Not sure how that affects the lights but guess I'm recommending that you have the bottle inspected regardless of the lights. FYI the old system is not refillable because of...
We had looked at a 270 Amberjack before buying our 280. There was a big difference in interior space. As you said the head was very cramped - I couldn't stand up in it and I'm only 5'11. It also felt a bit less stable in the water. Not sure what the displacement difference is - but it was enough...
Or umbrella! Amazing that it's almost the end of February and the ice I've seen is just along the shoreline. A warmer than normal spring could help with the water levels.