Well, Forfarian, a mixed day for me.
Armed with your information, I drove to my nearest FHL. We used to have one near where I live, but it closed, I think, due to lack of interest. SOME of the films and fiches were sent to the next nearest one, and some were just returned to Salt Lake. I could weep.
There were 2 computers available to access one's own account. They were both in use when I got there, and there was another fellow waiting. I went into the film and fiche room. Most drawers were unlabeled, and it was obvious that the room was a multi purpose room. Both rooms were small and had precious little table space. The people were lovely, but ... they were doing the best they could. The facility is open for 3 hours, once per week.
I never found the census films, they were labelled only by number, with no 'key', and the fiche reader had no magnification. The attitude was a common one these days - that computers make films and fiches redundant.
It was so disappointing - BUT, when I finally got onto a computer, I was able to view 1841, 1851 was dodgy. Anything later just refused to load. The census images all came from FindmyPast.
I was forearmed with your information, so I was able to get more done than I thought I would, although I never find 1851 Methven - only parishes beginning with "A" would load and Perth city.
So, given that Ancestry is probably never going to have the census images, I think the wisest thing is to just bite the bullet - get a membership to FindMyPast and set up an account with Scotland's People. Anything else will just be unrealistic and frustrating.
Although, a trip to Scotland would be most fruitful.
Any suggestions on which level of FindMyPast membership I should get given that I have an ancestry membership already?
I appreciate the advice you have given me thus far.
Thanks for it!