Graded MOC storage

[Jaxxon]

Question for the hive mind.
If you HAD to store your graded MOCs, what would be the best positioning of the cases.
They would all be going into black Really Useful Boxes but is it best to store them vertically standing, or as I've been recommended, horizontally to take the strain off the bubble?

 

[theforceuk]

Yes horizontal as you say and not in the loft. I believe temperature has a huge impact on the blisters yellowing. No warmer than 15c.

 

[StarWarsFan]

I store all mine horizontally

 

[Mini99]

horizontal all day long.

 

[theforceuk]

This thread got me thinking about plastic degrading so I asked A.I what the best temperature is to stop plastic degrading. Surprisingly low, although slightly vague it said 0 degrees is the best temperature and every 10 degrees above that you double the speed of the degrading.

I'm not about to put my collection in a walk in fridge.