Complete beginner, any advice welcome please :)

[Scrumpy]

I think it's 5 for steel.
For a fibre wrap it's 5 from initial born date then every 3. I'm sure some one will verify or discredit me

And most nxe packs will take locklids both the one I had and the one you borrowed were nxe

 

[Gassy]

Best advice I can think of don't buy anything from Tiny/uka123/Carter123 aka Tom Breakwell or any of his associates