In reply to GridNorth:
> Personally I think the best way to give a dynamic belay is to use an appropriate device because my instinct would, I am fairly certain, be to take in or lock off to minimise the distance of a fall.
The best way, if you are actually interested in sport climbing - which you explicitly say in your profile you aren't, so fair enough - is to learn and practice giving a proper soft catch by moving with the rope as it comes tight.
I would expect that somebody of your experience ought to be able to appreciate that different belaying styles and techniques are appropriate for different situations. There are times when minimising the distance is important and there are times when an extra metre makes no difference at all and it's more pleasant and safer for all concerned to minmise the impact. The classic scenario is just above a bolt on slightly overhanging ground, when a semicircular slam against the rock is dangerous and letting the climber drop a bit is much safer.
> most peoples instinct would be to take in and brace themselves when they think a fall is imminent and/or in progress.
Not the instinct of an experienced and competent sport belayer, because s/he has trained and practiced doing something else.
I'm an old traddie too and still in the process of learning to suppress my "take in and brace" reflex, but it is, in fact, possible for old dogs to learn new tricks. If they can be bothered.
Post edited at 15:19