Land after assumes no adverse braking reaction, so we can factor that one out. In BA we are given plenty of info on 'land after' clearances, although some ultra-cautious skippers don't like accepting them (rarely for valid reasons in my experience). Personally I'd be happy with a 'land after', or if in a smaller aircraft I'd be happy with an 'expect a late landing clearance' as is often the case at LHR.