RoomWithABrew
Landlord.
I've only seen one Antipodean in this thread so far. Hence my prod at their inefficient bar staff ( aren't they all in UK anyway ?), completely agree re speed of filling a pint from an engine. Settling time on a pour is time to get the money off the punter or get the wine, crisps, nuts etc.I don't think it would be that useful, different beers will mature at different rates. If it tastes good, it is good to serve, thats part of the job of the landlord, barstaff. And, beer can always be returned. Most decent pubs will provide a tasting sample on request.
For the Antipodeans, speed of service isn't the problem. Hand pulling is as quick, if not quicker than serving from a keg. It's not selling enough pints from a cask before it expires over a 2-4 day period. Glass size isn't a problem, pints or half pints are the standard measures.
I'd go as far as saying it's not really a pub issue, most around easily manage to maintain a couple if not more cask lines. Why I feel this is such a non-issue. It's a solution aimed at places where cask ale will never be viable.
Surge sales will be difficult to manage anywhere, try getting a drink at a football match at half time or at a concert intermission.