Yeah it would be neater with the dynamo cable routed internally, particularly on the fork. As you say though for the sake of aesthetics I'm not too keen on drilling holes. I might try and source some tape though so that I can get rid of the zipp ties on the chain stay.
You could go into the mudguard at the BB and then back down the mudguard stay.
A tiny bit of aesthetic benefit for probably lots of faff and a dependency on mudguards. Totally not worth it but the sort of thing i'd do and regret doing half way through.
Yeah it would be neater with the dynamo cable routed internally, particularly on the fork. As you say though for the sake of aesthetics I'm not too keen on drilling holes. I might try and source some tape though so that I can get rid of the zipp ties on the chain stay.