This is by design now. Vrops will only tell you do reduce by a max of 50%. This is like a guide rail in case the more aggressive reduction had an adverse effect on the VM for some reason. Now you do it in stages. Reduce by half, monitor the application and if all is still good re run the right size.
Perfect, many thanks for the response. Interestingly enough, that is what a lot of my supermetrics were about as the old metrics were too agressive!