I would give it a 5 because I like "Jackson Cooper" but not the spelling. I don't see why change the spelling which could make it tricky for people to pronounce and for him to spell.
Otherwise it is a fab proper little boys name.
LOL she's got a point here. My mom knows Jaxon's name is pronounced Jackson, but she never lets me forget it looks more like "Jack on". I've gotten used to her complaints and I dont regret spelling Jaxon's name like Jaxon (as it was a compramise with my OH. He didnt like Jackson, to much like a last namee, but liked it Jaxon...weirdo).
Jaxon is the modern form and kupa is polish. It doesn't actually have the same meaning as Cooper. And Cooper is a bit old school anyways
If you would be going with Kupa because it's Polish rather than just because you thought it was a 'cool' way to spell it, then it's not so bad. If you have Polish connections and it's a nod towards those, then although it's not a name that we would really be familiar with, it has meaning behind it and would be special to you. Spelling it Kupa just for the sake of it is I think why a lot of people would dislike it.
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