Even if the IAS drops suddenly, you've still got the stick and the throttle to give you some more - probably more than quick enough to recover you a safe margin again if you've got your mind on the job.
Andy RR,
I agree.
That is exactly how I have been flying to date.
My original question was caused by reading somewhere that I should be adding significant airspeed at the time and place when I don't want it.
And I think you,Beagle and others have answered it for me.
I might try some approaches at 60 mph in calm conditions and see how I get on,because in gusts I could be approaching at over 60mph as some recommend,the wind drops right off, then find I'm on the threshold at around 5-10 mph more airspeed than normal,and possible significantl increase in ground-speed.
I'll try when it's low or zero wind and see how far I float before touching down, then if it looks dodgy go around,might have to go around before touching down if it looks tight.
Lister