Re: Worcester noseband.....
Sorry to be negative here but if your horse isn't relaxed naturally, a noseband of whatever flavour is not going to help him do so; it is just yet another restriction to fight against for him.
Does he enjoy the work you're asking of him or is that when the tension starts as that will tell you a lot? Sometimes it's better to go back to absolute basics and start again, only building up the degree once he's happy with what you're asking.
Many TBs that sound like yours have learnt to be relaxed and happy in plain mullen mouth snaffles, the softer mouthpiece the better, rubber is a favourite and a cavesson as they have nothing to fight against then; I know many happily hunting in those that are a nightmare in anything restrictive.
Find something he is happy in then and give him jobs he enjoys then he will start relaxing more and don't ask questions yet that he finds hard to answer in the way you want or you will get evasions set on by stress again.
Slowly catchee monkey, sorry.
Pat. Be a pauper - have a horse, preferably a British one
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