if you look inside the topkit you’ll be able to see the spine, then you can put a mark on the outside with a chinagraph pencil or tippex if you like.
or sometimes the alignment markers are sold on greedybay.
as for how much difference lining it up makes i’m not sure but a lot of companies do it~think

I might be wrong here, but my thoughts on joint alignment have always gone down this road……
carbon tends to wear quickly really and in aligning 2 points at exactly the same spot has the potential to wear out either or both sections in specific places?????? For this reason, i have never aligned any pole with markers on and never had any problems.
The markers are certainly never put on in a specific place, as when you look down the pole, they can be in any position on differant sections in relation to the spine position.
I think there just there for show.