Sounds good.
I'll try and offer a few tips, what works for me anyway...
Even cutting Polyspan can be a little tricky. I
always start with a BRAND NEW #11 X-acto. I lay it down on a nice smooth piece of cardboard so it doesn't slip around and cut while using a straightedge. Check, double and triple check to make sure you have the correct side up when you lay it on the wing.
Then check again.
I'll cover the wing as usual, running it a couple inches past the end rib so that you have something to hold onto. Once I get it well attached all around the perimiter, I let the clear dry at least 24hrs. Next I'll come back and shrink it with the heat gun,
carefully. Shut off a light or something in your shop to get yourself some shadows to watch as you tighten it, this really helps a lot. Sneak up VERY carefully with the heat settings and application until you get used to using the stuff, be patient. Once I get it tightened up then I'll dope it on to the rest of the ribs and sheeting. After that I'll trim it back flush with the end rib. Then, as the last thing, I'll do my wingtips with medium silkspan. I overlap it about an inch back over the Polyspan, and then move on with the rest of the clearcoats on the whole wing.
Polyspan definitely takes some getting used to, but I won't use anything else anymore. When it's all finished it's pretty tough too, which should be good for the abuse Carrier planes have to take.
Hope this helps!