I feel almost embarrassed to post my efforts after looking at those fabulous pictures from
@tall_paul1979 wish my coils and photos were that good, great work.
The coil in one of my serpent minis finally gave up the ghost this week, resistance shot up from 0.48 to 0.6 after a dry burn so I figured one of the core wires in my fused clapton had probably broken somewhere... not too bad though since I built and installed the coil back in February.
I decided to get a bit adventurous with the drill this time and try to do a staggered fused clapton. 0.32mm cores with 0.14mm clapton wire around a 3mm bit in 316L.
Didn't come out too bad at all for my 1st attempt. Here it is sat in my serpent mini, it's a tight squeeze but it just about fits.