Still having difficulty persuading MT about the spinner that I need for the Fastback cowling... yet again they say "its the wrong one. please fill in the form with dimensions.. but theengine needs to be mounted in order to do it... so I installed the engine! The Dynafocal mounts are a challenge! Eventually got three installed, but the fourth was miles off. I then realised Id forgotten a washer on the engine side of the third mount. decided it wa stime for bed!