Thanks both of you for the tip pocoellie and Mary, I shall have to sit down and practise more. I think I have found a pressure gauge that will work with the bobbin case in the 201; The Featherweight Shop has a tiny one where you just let it hang in free air and hold it up.
I guess most of us like a good zigzagger with a few utilty stitches, but what ever you buy in the future, I'm sure the 201 is well worth having tuned up and ready to go. It's can cost a bit either time and effort or to hand it in some where. The gear driven is a bit cumbersome with the grease wicks and rewiring, but there is very good tutorials on the web. I'm sure you have found them.
The early 201s look so nice with the art deco chromed plates and god decals, but they almost always need full rewiring.