At most airfields, if you choose the correct PAPI's (some are set for big, long heavies) you follow both them and the Glideslope to the fixed distance markers where you'll do a flare and land. Ducking into 3 reds is as unacceptable as long flares/hold-offs which land you outside the touchdown zone. The reason for the first is that you may easily increase the ROD to something unacceptable, un-stabilise the approach and wack it in and the second is that not only do you invalidate your landing performance, you also increase the chances of a tailstrike. Exceptions? Plenty and these will be noted on the approach plates: Trondheim Rwy 27 for example. The radio glide is at 3.4˚ but the PAPIs are at 3˚. So operating here you would expect to end up "three reds" if you follow the radio glide slope.
And while we are here, you are only being paid to land on the centreline, at the right place and speed. There's no bonus for a greasy smooth landing. Just so long as the plane can be used again, any landing will do.
PM