Polishing by hand is kind of tricky at first. I got enough hazing on my black paint from 3M SMR the first time I used it that I nearly fainted when I took my car out into the sun and washed it. However, don't let this scare you too much, I got 90% of it out and next time I do it I'm pretty confident I won't get hazing.
Tricks I've picked up:
<ul class='bbc'>[*]Applicators - I really like the following applicators for polish application. They are firm and allow you to apply even pressure, which is very necessary to not cause little streaks of hazing from where your fingers are. If there is an Autozone in your area they may have it, otherwise a detail shop might have it. Keep an eye out. Here's a pic:
http://store5.yimg.com/I/tolae_1663_7356847
[*]Application - This is the biggie. I will attempt to explain my method here but please keep in mind I have only done this on one car so far so YMMV and pick up your own tricks! What worked for me may not work so well for you, paints respond differently to different things.
If the swirls are really bad, either use FI-II first (I have not used this) or use SMR and push in firmly for the first pass. Work it in firmly with an even back-front wind directional rubbing, and lighten up somewhat when the polish dries out. Keep rubbing when it dries out but very very gradually decrease your pressure. If the applicator starts squeaking spray some QD or add just a little bit more SMR there.
Keep in mind this is when the polish may be most abrasive. There are less lubricating oils to keep the abrasive particles off of your paint, so make sure you gradually lighten up. Figure to be rubbing for a while because this is not a very abrasive polish. I'd recommend doing the 'cutting' first and then worrying about getting rid of the hazing you may have just created.
This hazing should decrease quite a bit as you move along, but you probably won't be able to see it until the sun hits it just right. That's fine, you don't want to see it at all!
Next stage: finishing. You're done cutting so clean up the surface a bit with a generous application of QD and a very careful removal of polish that's on there. Don't worry about getting it 100% clean, you're not done yet.
Use a new applicator at this point (buy a few in case you drop any or they gunk up, I went through 5 for SMR but I'm clumsy and paranoid

). Apply SMR to the pad and start working it in again. Don't rub hard at this point, you are just trying to do a good finishing up kind of polishing. Feel free to rub fast, you just might create a little extra heat (see BW's thread
Breaking down abrasives with....), but make sure you apply it in the right direction just in the off chance you get grit or anything under your applicator.
Just keep going, lighter and lighter. Spray QD on the applicator and keep going lightly when the stuff dries up. You will know how lightly to do it when you do it, everyone finds their own preferences.
I'd highly recommend finishing with PPCL as you plan to -- it's great stuff! Make sure you get the surface very clean of SMR. A wash would be ideal, no need to detergent wash, just normal car soap should work fine. Mix a little Dawn in if you have a lot of residue and rinse your mitt often.
Rub the PPCL in more firmly than you finished up with the SMR, it isn't very abrasive. Go lighter and lighter as it goes on, do at least 2 applications, the first more firm than the second. Make sure the second one is perfect because you're now done![/list]
As far as heat goes, I'm spoiled with a nice climate here but if you need a bit of extra heat what I would do is get a couple of more cars and warm up the engines really well and run an electric fan (use caution outdoors..) pointing from their engine down the body of your car so it blows warmer air on the paint. Do this on both sides if need be. I've never tried it so this is just an idea

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HTH!
puterbum