NS geo-distribution

[Dave Warren]

Thoughts about how to best distribute NS servers hosting authoritative 
data for our zones? We currently host only about 300 zones so all zones 
live on all 3 servers but we're looking at replacing 1-2 of our NS 
servers due to reliability of the current servers.

My thinking is to just pick three sites in Canada/US with good 
connectivity and host there, but I'm getting some pressure to pick a 
location in EU as well.

With the vast majority of our customers being in North America (probably 
75% of users are in Canada), would it make sense to add a Europe based 
NS or would this tend to return slower results on average since a 
potential user would have a 1/3 chance of hitting a NS with a higher 
latency?

I realize that the difference isn't very significant in the grand scheme 
of things, but it's always nice to shave a few ms off of initial page 
load times.

-- 
Dave Warren
http://www.hireahit.com/
http://ca.linkedin.com/in/davejwarren