Mostly I'm always trying to pack things with rounded shapes or things that reduce in size as they are used. Dromadry water bags as opposed to water bottles...stuff like that.
Sleeping pads that roll up as oppossed to the sq accordian styles that are on the market.
I separate the tent from the poles..you can squish the tent, but the poles are unforgiving. They get special care not to bend or distort them.
I tend to leave a little "play" even when using dry bag compression sacks.. I'll roll it down tight to get the air out, seal it tight then unroll it a little so the contents can move about as you try to fit it through the hatches...often the hardest part of packing.
I'm not familar with your boat, but every thing goes into water proof bags even if it is just double bagging them with trash bags.
I'm sure you'll get the hang of it.
Have fun !