I was never a big Shake user so not in a position to judge, but having started learning Fusion, which is great btw, it seems to have a great deal in common with Shake. Not just being node based, but many of the tools. Is Shake part of Fusion's past?
XdcamEx & HD, C300, DSLRs, all sorts of production & post gear and a very untidy desk. On the East Coast of the UK