20mph limits really don't bother me at all. I just pootle along in 2nd or 3rd at 1000rpm. It's speed bumps that go along with the 20mph limits I have issue with.
Me neither, I had a weeks holiday in Wales driving from St Davids in the South all along the coast to Porthmadog / Criccieth so experienced the 20mph zones and it didnt bother me at all