I was thinking along similar lines but couldn’t come up with a plausible link. End 1926 would be a bit late for war profit tax problems and PB/Supermarine built very little anyway, nothing like the Sopwith production. I haven’t come across any references to financial trouble prior to the liquidation, but then again something like that would have been kept as quiet as possible. Maybe the clue is back around the time that Scott Paine was bought out by Jimmy Bird late in 1923, it has been suggested that the split was a bit acrimonious, but again I don’t know why.