I just put tissue on one wing. This is a new process for me, and I'm still learning it.
On the suggestion of someone here on Stunthanger, I'm covering the plane with tissue, then doping over that. It does wonders to fill the grain, if only I can get it to work right!
The first plane that I did I covered dry with Esaki tissue, doping as I went along. That proved to work OK, except that the tissue swells a bit when you dope it, so you basically have to get it wet with dope and then smooth it down for the first pass. This isn't for the faint of heart, or for someone afraid to get dope all over his fingertips.
I made some repairs using some tissue that was marketed as Peck Polymers "domestic" tissue. I've heard good things about this stuff, and I know that what I used was probably from about the time that they were getting bought by A2Z -- so don't think I'm dissing Peck. At any rate, that tissue is nasty stuff. I put it on wet, it didn't really shrink down, but it sure did swell with the dope! So the covering was a wrinkly mess, and it doesn't really match the Esaki for color (Esaki "white" is more a parchment color)
So for this plane I'm using (with trepidation) some "domestic white" tissue from Easy Built models. Because I wasn't sure, I've just covered one wing to see how it goes -- it goes reasonably well. They go on about how they hand-select this stuff, and it's certainly better than the other "domestic" stuff I have (which is going into the bin for Christmas wrapping as soon as I'm done writing this). It's not as good as Esaki -- it's kind of a Buick to Esaki's Lexus, but it gets the job done.
I'm putting it on damp, smoothing it out and doping down the edges. Once dry it's taut enough that it doesn't noticeably loosen up with dope, so I can just brush on clear without pain or fuss. Putting tissue on solid wood should always be done damp, by the way. I'm using a mister to just get it damp, then laying it on the wood, getting it to where I'm happy, and doping it down. This stuff does not have the tear resistance of Esaki, but with care it works well enough, and its very easy to trim it off at the edges by lopping it over the edge and tearing it off (which gives some overlap, and the torn edge blends very nicely).
So I'll cover the rest of the plane the same way. I'm planning on just doping it with clear and trimming it with colored tissue -- I want to get the last coat of dope on it this weekend, so it'll have a week to dry before the Roundup.