Commendable, Peter.
Lining is something I’d like to try eventually, with a pending investment in a suitable ‘pen’. To this end, I’ve been fascinated by a helpful video or two by Mike Trice which can be found on YouTube
If you’ve seen it, please forgive my interruption, but one measure I recall from watching was his use of a ‘new’ tin of paint (Humbrol) for each subject to ensure a compatible flow of paint. Respectfully Peter, I only mention this as I can’t help noticing that the tin of paint you appear to have been using, from the photographs anyway, looks as though it may have been in your possession for some time?
I sincerely hope you don’t mind my interjection, but just an observation.
Jonte