Specifically, this is a Graflex-inspired design (the Anakin-Luke-Rey lightsaber) that is more dueling oriented because of the lack of a control box, like what you would see on a normal Graflex saber. Excellent choice for you budding Jedi (or Sith...don't be afraid if he says he's more inclined to a red lightsaber, let the dark side flow through him...
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Anyway, that's a really good point that you've made. The Graflex traditionally has the control box and thus the switch aligned with the glass eye (or lack thereof, a window instead in the Progeny's case). Here, however, the switches are at a 90 degree angle. That kind of bothers me now that you mention it...
I'm not sure that such a thing could be altered, as Apprentice hilts are usually designed as two pieces, the hilt itself and the pommel. However, this looks inspired from the ASP system, so there's a chance.
I have to ask, have you asked your son what color saber he would want to have, or is this a surprise? If it is a surprise and you're trying to emulate the Clone Wars TV show, I would probably recommend a Medium Blue or Deep Blue LED. The Deep Blue will be more akin to what you see in Episode 3.