I would be surprised if 172s went into storage until all the 170s have left WMT - they haven't yet have they - since more 172s at WMT presumably means WMT need fewer 170s? I could see them leaving WMT if Chiltern's passenger numbers have recovered from the pandemic and Chiltern want them back, but I wouldn't describe that as going 'off lease' as they would be on-lease to Chiltern and working there.Been past Tysleye today. 101, 102, 103 all lined up on the depot line nearest the main lines. Are they awaiting 104 and off on mass off lease?