I seem to remember reading years ago that early marks suffered from aileron locking is there was any extended loiter before take-off. That apart, my sole recollection is non-technical but it has remained with me over the years. One instructor Flt Lt XXXXX at RAF ********** was going through his routine and in it appeared a photograph the Swift. His words were: ".... and this is the Vickers-Supermarine Swift, of which it has been truly said: 'They will never strap XXXXX's arse to one of these'".