Hey many thanks for replying and your ideas here.
I also love Bach! About 5 or 6 years ago, in my mid 40’s I decided against all good sense to start learning to play the Cello for the first time. I’m still at that and of course the Bach suites are pieces I regularly do battle with. So it was inevitable I guess that I’d then start trying to play Bach on the guitar too, since it’s an instrument I’m a lot more familiar with, having played it since my teens. Mostly in rock/blues/metal bands though, so I don’t have a classical background. I only learned to read sheet music since I started to learn the Cello 
Regarding the sweeping - yes that’s something I’ve noticed that keeps ‘sneaking in’ on my attempts. I’m still trying to decide whether to go with that, and make it a deliberate part of my approach (and therefore work on making it more consistent) or fight against it and try to keep everything cross-picked. In my general playing I naturally veer towards the Yngwie style economy/legato style vs the Morse etc cross picking, but then I do like how it sounds.
It’s a conundrum!
Funnily enough I have similar issues with the cello - string changes are a thing there too and also the matter of interpretation - many of the most used scores for the cello suites have quite a bit of slurring in them, which makes them sound smooth but sometimes too smooth to my ear. When I listen to people doing more ‘period accurate’ versions they tend to slur less and use more bow strokes which gives the pieces more bite and rhythm which to me sounds better.
I’ve read that Baroque music is ‘spoken not sung’ which I feel sums it up - some modern players smooth all of the edges off to where it sounds a lot more like romantic era stuff rather than baroque!
Of course I’m very much an amateur on the cello so I’d be happy if I could just play the pieces reasonably in tune and in time ha…
Anyway… I’m getting way off topic but it’s something I enjoy thinking and talking about 
As for the piece being a 2 year piece, that’s a great reminder indeed to slow down and take more time with it. I’ll do that, thank you!