but if the guys floats a little bit, I'm never asking him to "put it down" like some captains Love to do
Telling the PF to "put it down" (during a long hold-off) is asking for trouble. That can lead to "spiking" the aircraft nose-wheel first and a bounce is the likely result. It is usually a nervous captain saying "put it down" as I can not visualise a first officer demanding that if the captain is landing.
If for some reason let's say the first officer is the culprit of the long float, the captain, rather than risk attempting to salvage a bad situation by talking the PF into "putting it down", should promptly take control and go-around.
Telling the first officer to go-around instead of taking over control of the go-around himself, has the potential for a further critical delay. Especially if there is a language difference between the two crew members which has the potential to further exacerbate an already developing situation.
Bugger whose "leg" it is. There are times when a stuff-up has occurred and that is where the captain needs to recognise his own responsibility for the safe operation of the flight and take control without pondering the why's and wherefore's of whose "leg" it is.
