Detailed tutorial on how to use a hackle and diz to blend a gradient roving for an ombré yarn

This Fibre to Yarn video supports a blog post I’m currently writing on how to load a hackle to prepare roving for a gradient yarn.
Here, I take advantage of the fact that my black fibres are significantly shorter than my other colours. This means that fewer black fibres are pulled off in the beginning, while black dominates towards the end.
The blog post about how I spun this yarn is here - https://www.craftmehappy.com/2022/01/blending-long-gradient-on-my-hackle.html.

Timestamps
00:00 Introduction
00:33 Filling the Hackle
02:44 Covering the Hackle
03:17 Threading the Diz
03:54 Drafting fibre through the diz
07:47 Finished Roving showing a gradient
08:02 Big Ball of blended Roving
08:11 Spinning a fine single
08:52 Using an interval timer to remind me to move the yarn guides
09:16 Three finished Bobbins
09:31 Finished Yarn
09:44 Finished yarn in cake form showing a gradient or ombre