in a hypothetical situation, would the two names [name_m]Maxon[/name_m] and [name_m]Sampson[/name_m] be too match-y for your taste? What if they were almost exclusively called [name_u]Max[/name_u] and [name_u]Sam[/name_u]?
[name_m]Maxon[/name_m] and [name_m]Sampson[/name_m] alone would be pushing it for me, but if they were call [name_u]Max[/name_u] and [name_u]Sam[/name_u] exclusively then I think it would be fine. [name_u]Max[/name_u] and [name_u]Sam[/name_u] are wonderful together.
I think [name_m]Maxon[/name_m] & [name_m]Sampson[/name_m] are matchy but I think with the nicknames [name_u]Sam[/name_u] & [name_u]Max[/name_u] it works.
Suggestion:
[name_m]Maximilian[/name_m] & [name_m]Sampson[/name_m]
I would just go with [name_u]Max[/name_u] and [name_u]Sam[/name_u].
Or [name_m]Maxwell[/name_m] and [name_m]Sampson[/name_m]!
I agree that [name_m]Maxon[/name_m] and [name_m]Sampson[/name_m] are too close. I’d go with either [name_u]Max[/name_u] and [name_u]Sam[/name_u] as full names or change one of the full names e.g. [name_m]Maxwell[/name_m] and [name_m]Sampson[/name_m], or [name_m]Maxon[/name_m] and [name_m]Samuel[/name_m]. I much prefer [name_m]Maxwell[/name_m] and [name_m]Samuel[/name_m] as names, but they match too, lol! Personally, I’d go with [name_m]Maxwell[/name_m] and [name_m]Sampson[/name_m] with nn’s [name_u]Max[/name_u] and [name_u]Sam[/name_u] 
x
Why not just use [name_u]Max[/name_u] and [name_u]Sam[/name_u]?
I don’t think it’s too terribly matchy, but I can see where you’re coming from. If you really love both names, I wouldn’t worry about. But, [name_m]Maxwell[/name_m], [name_m]Maddox[/name_m], [name_m]Maxim[/name_m], or other [name_u]Max[/name_u] names would solve your problem.
But, if they were my two favorite names, I would still use them both. I agree with what boyandgirl said, you can just call them [name_u]Max[/name_u] and [name_u]Sam[/name_u] most of the time. A lot of people might not even find out the names both end in on.
[name_u]Max[/name_u] and [name_u]Sam[/name_u] are great twin boy/brother names!
Using the full names [name_m]Maxon[/name_m] and [name_m]Sampson[/name_m] makes it matchy.
There are other options available for full names. Someone using [name_m]Maxon[/name_m] and [name_m]Sampson[/name_m] for twins likely want to be matchy. I don’t like it.
I don’t like [name_m]Maxon[/name_m] and [name_m]Sampson[/name_m] together at all, far too matchy. I really like the suggestion of [name_m]Maxwell[/name_m] and [name_m]Sampson[/name_m] though.
[name_u]Max[/name_u] is a cool but popular name/nickname in the UK, while [name_u]Sam[/name_u] doesn’t have the coolness of [name_u]Max[/name_u] and seems very plain.
I love [name_u]Max[/name_u] and [name_u]Sam[/name_u]. I also love the suggestion of [name_m]Maxwell[/name_m] instead of [name_m]Maxon[/name_m].
They are too matchy, matchy [name_f]IMO[/name_f].
Suggestions:
[name_m]Maxfield[/name_m] and [name_m]Sampson[/name_m]
[name_m]Maxwell[/name_m] and [name_m]Sampson[/name_m]