All well said.
Without covering old ground, theres no magic formula other than a 'feel' for whats happening and being aware of the conditions on the day and even they can change quite quickly. Being consistent, whilst a target, is actually very difficult to maintain - I'm no exception there.
I guess theres a certain amount of balancing here. Not everyone drives a £12k+ camper. Some of us have the best we can afford within budget and some are in far worse condition than others so even an orange-peel finish is better than some of the scabbier vans I've seen. Painting should be at the same pace we drive them - as and when.
I was very lucky with mine - bought for £460 on fleabay two years ago - belonged to a local church and had just had a recon engine. Underneath was totally immaculate (impresses the MOT guy each time) but body definately very untidy. In my view the expence of a respray (whilst a nice thought) was just too much for what it is plus I rather liked the concept of a body coating i could come back to if need be and treat accordingly. At worst, if you really do screw up, you can flat and do it again and heck its cheap paint for what it is. I kinda see the process as akin to maintaining a narrowboat and if you get totally bored, heck you can paint it bright yellow if you want to.
I accept (having been in the Aircooled scene for possibly 30 years) that no two owners are alike and many are purists. They're the ones that waxoyl every month, clean out the sliding door runners after each and every trip to the beach, and are in there polishing everything. Each to his own and I love mine but I also expect it to do a days work too. There does come a point, even with type 1's and 2's when you end up spending way more than its actually worth and you should just let your bus/camper/bug live a little too. That is after all, what it was designed for. Compare it to the hi-fi enthusiast that gets wrapped up in technicalities and simply forgets to really listen anymore.
Today I had to meet someone who failed to show up. It was a longish trip and on the face of it was a wasted journey except I got a couple of hours sitting above everyone else and enjoying the ride - nothing wasted in that
