Design changes and when they happened?

[Padgett]

Just noticed a change in the 2720SL that took place for either the '05 or '06 model year: the propane bottles were underslung & allow a flat floor all of the way across for the slide.

[tentcamper]

The new owners seem to watch this form and incorporate simple fixes, mods and are addressing issues that enough people write about. A few I have seen are the tire size, cassette toilet, Velcro stick on tape to plastic screw on dots. I'm sure there has been many more. They seem to incorporate the change any time during the model year.