We have the 2502S that has the short queen bed. I cut off the 2 inch topper but wished I hadn't. I could have put the extra at the pillow end, pushed the mattress down a bit and had a longer mattress. Would have put some kind of rolled up foam under the pillow end to support the topper. I have a slide and it doesn't affect it at all. It is a little more difficult to lift up the bed for the storage underneath but well worth the extra length. Also, our Mini Lite was shown as having a double sized bed and it is a queen size. Not sure if former owners changed it out or not. It hangs over each side by about 2 inches but not a big deal.
I also shortened my bottom sheet by making a tuck in it at the top and fastened it with safety pins. Makes the sheet fit the mattress better and I didn't pay extra for the short bed sheets.
All kinds of ways to make things comfortable!!
2016 Wildwood 26TBSS
2012 F150 Screw XLT
4 leggers Spudz and Halley