@Adam@TartyBikes have you ever used a company called JF Hose & Couplings? I'm currently looking around for stainless hoses (convoluted stainless inner, stainless braided outer) and they popped up in Bamber Bridge - just around the corner from TBHQ!
When being artistic I can definitely see the end result I want before I've started, unfortunately I usually can't translate that onto paper with my hands which is really frustrating!
Sometimes I'll be in bed and I'll start thinking of bike products I'd like to make or modify and I can picture the products and the modifications pretty clearly, same with video projects where I have to modify things (like cutting a branch) I can visualise that in my head but I think that's likely because I've seen these things before hand which makes visualising them easy in my head.
The thing I struggle with and I'm really impressed is something Danny can do is completely imagine a unique line for a video project. For the video "This Is Drop And Roll" he asked me what objects I would like made/arranged. I just couldn't give him an answer! I prefer just randomly arranging boxes/objects and then figuring out how to ride it, like a puzzle. Danny can picture the end result and then build the obstacles to make it happen and I find that really weird. It's like having a completed puzzle and then working backwards, kinda defeats the purpose a little for me.
So I guess I don't have too many original thoughts (other than some art stuff) but once I've seen a situation I can picture it very clearly in my head and modify it with new thoughts.
To make life easier for peeps, I just found that Exeter uni have a dediated site for it - http://sites.exeter.ac.uk/eyesmind/
I don't really know where I land on this yet, but I think i'm closer to aphantasia than hyperphantasia.
When it comes to riding I always wondered if those who can visualise see themselves in first person doing whatever they're doing. I feel i can see in 3rd person, i.e. how a camera shot might look, but when it comes to seeing myself doing something, I'm like Mark as in i've learnt by watching others and essentially I have to put in 10,000hrs before i get comfortable with things (Mark can also vouch for this having filmed for me...)