Hi Tom! So it's YOUR fault then. At least I now know who to blame!
I have ridden Dons S3 and his has aftermarket shift linkage and it shifts better than mine- but it's still not great. The Baker shift kit reduces the effort required to shift and makes shifts a little more positive, but doesn't make things any "crisper". I don't miss 1-2 shifts anymore and the 3-4 change is much better. I may just have a poor example, but I really don't think this is a gearbox that will ever be comparable to what one finds in a typical Suzuki.