You can make the flight...unless they change the departure time to earlier, which is not uncommon. You need to get off as early as possible, and have private transport arranged.
I absolutely wouldn't be arriving the day of sailing. While Amtrak's on time performance has improved, I would never trust them so much as to arrive the day of sailing.
I have been in aft and midship Neptunes on the Signature and Pinnacle class ships, but not EVERY one on the Signature class. ( Been in every aft in the Pinnacle class, except deck 8.) The aft have always been smaller in the interior, as compared to the midship Neptunes.
As has been mentioned, KDam is going to the Caribbean for a drydock, and the winter Caribbean season. There is no evidence it is being permanently removed, or that some other Pinnacle class ship wouldn't be assigned here.
I don't have any sales figures on how full the ship sails. Does anyone?
You have asked this several times. We have told you Konningdam will be returning to the West Coast...the sailing date is April 10th 2026...its in the HAL schedule on the website.
As mentioned here frequently, you need to be all over the ship during your transit. Be on the bow (if available) for a locking. Be on the Promenade deck for a locking. Your aft cabin is also a good place to be, but I am not sure I would pay 25% more.