Trade up itch....need advice.

[lebolewis]

I am a FT Airstreamer and I'm thinking about selling my 76 31ft Sovereign and buying a newer 28-32ft version.....maybe late 80's , early 90's.

I know that Airstreams were made with "chipboard" floors in the mid 80's. I prefer to avoid those models. Can anyone tell the years that chipboard was used in Airstream floors? Thanks, Bill