BY have operated all their 757 routes ex SOU with full loads, no restrictions.
Air Europa also operated full loads on the -800 last year.
Spanair A320 operated full loads, but had an optional tech stop built in I think.
Spanair MD83 had a restricted load ex SOU and always used all the runway before rocketing upwards.
The FlyBe 146 tech stops at BOH were due to Temps of around 33c at SOU which is way above the norm and as such understandable.
Hope this helps the knockers re read their ops manuals and time tables to stop posting inaccurate nonsense.