Another good point you’ve raised Mal and one RCTR have already put to Andrew. As yet no definitive answer has come back as Andrew is awaiting the 3d printed parts for his Centurion to be done. Once compleat they will be a test fitting of a set to a Chieftain hull to confirm fit and function. He explained that although he specified the parts should be interchangeable between models he is reluctant to confirm this is actually the case until it’s physically fitted and checked to his satisfaction that all parts are indeed a straight swap between models.