Fire/Sonic thinking of starting one during 2XP, but is Endurance too much a problem?

I have always thought that this looked like a great combonation. Fire has good damage and decent control. Sonic brings a lot of greatly improved resists, lowering enemy resists, and mez protection. Since everyone is trying to soft cap defense anyway, most toons don't need help with Defense, but extra resistance almost everyone can use.

I've heard that both sets are very Endurance intensive and that has always scared me. Should it?

Would Consume help once you got there?

The epic consume is pretty meh. Personally, I'd go for set bonuses for recovery first, then recharge.

The endurance use on Fire/Sonic is absolutely brutal. It's really shame, because the powers work well together. I would advise going for Fire/Thermal or Fire/Force Field instead of /Sonic. If you decide to do Fire/Sonic anyway and find a way to make it work, let me know. My Fire/Sonic is level 38 but can't take 3 steps without passing out.

EDIT: Fire/Cold is a really good team shielder as well, and has a great endurance recovery power plus a power (Sleet) that debuffs resistance a la Sonic. The imps will die a lot but it would be good on a team.