Never heard the term "grouse choked" Toby, but it's interesting that dove shooting can be much the same.
There is no question that my biggest failing in shooting doves is to wait too long to trigger that first incomer. I thought I had taught myself, in Argentina, that an incoming dove can be killed much farther out than usually believed. I was using a 20 ga. with IM and LM chokes, 7/8 oz. of 8s. I just kept pushing what I thought was the outer limits of range on incomers, kept dumping them easily with the IM, and never really found out how far out is too far. But, back home on a shoot, I will invariably wait a second too late and my easy incomer has suddenly become a shot with many magnitudes more difficulty. And, the chance of an easy double has disappeared.
SRH
