I had two sites using dot com TDL from Hostgator. One is just for an ordinary blog, and the other one is for an e-commerce site. The e-commerce site is still in the construction. But, I'm considering if I should get a premium DNS hosting wich is similar to Godaddy Premium DNS or Amazon Route 53. Will such a hosting package make any meaningful difference if comparing to my current hosting package, a last second tier of DNS handled by Hostgator?