I agree with the other comments; don't wait until the last minute to call go around at your company landing gate... Make sure you fire a few warning shots first, if you're still high early on maybe fire the first shot.. 'we're still high john, not looking too good. we MAY have to go around at 500 you know!!'
another warning shot 'still high john' His last chance then demand 'GO-AROUND' you have the CVR and you've given the Capt every opportunity to know you views!!