(1) So over the boat went for the tapes to go onto the bottom. We unscrewed the cradle pieces we'd added to the strangely named 'step-and-fetch-its' (those whacky Canadians...) and found the boat sits very nicely on them (actually the gunwales are outside so it sits on the decking).
(2) Next step was to trim off the stitches as tightly to the hull as possible, This turns out to be not so tight no matter how careful you are. At this point, we've heard of people using wood planes to trim them down level, but we opted for a far more destructive as well as more fun approach - a grinding wheel, but used very carefully! Don't linger too long - if you do this as it gets the copper pretty hot, and you risk burning the place down, but where would the fun be if not for a litle danger. We did pretty well, but did add a few grinds in the wood here and there. Experience with 36332 probably emboldened us since this whole thing is going to get covered with epoxy/microfiber filler so anything will be totally covered as well as strongly reinforced. Another fine example of where our poor workmanship will never show up. Power tools are fun...
(3) The original plan was to get the tapes on, but removing the stitches and grinding everything down actually takes far longer than you'd expect so we decided to go with a target of prepping as time was short. You'll also find that there are no end of epoxy runs and blobs that appeared on the outer hull after the inside seams were done (and you won't have noticed since the boat was the other way up), so we hit those with a sander so things are nice and flat. Final act of the day was to measure and cut the tapes to length so we're almost ready to go next time.
(4) One thing you'll notice when you flip the boat is air space in some of the joints due to the sheets of ply being flat but the joints being angled (and probably many due to our shoddy work). What we decided to do was to fill these with epoxy/405 to add strength to the joints and avoid any air gap voids before the tapes went on. This was also an opportunity to fill the grinding marks, and the various other defects we'd managed to introduce so far. Seemed like a good idea to us anyway. Then again lots of things seem like a good idea to us at the time.
The instructions reckon this bit suffers from the tape tending to rise up - we didn't find this much at all - perhaps as the epoxy/405 made a pretty stout glue to hold it down which helped. There were a couple of places on the corners where we let it set up a bit before we pressed the tape down (and it stuck well) but no major issues.
(5) After the tapes set, a quick examination revealed lots of bits to be trimmed, deblobbed, and otherwise cleaned up but all seemed pretty solid. We consider this bit done so on to the next section.