Using 2 Range Extenders on one long ride-best strategy?

[ElevenAD]

Oh, ok yeah that's a good length for a ride. When I saw two RE's I was thinking, geez is that like a 10-12 hour ride, that's crazy. I know some people do it, but no way I could dream of it.

Glad im not the only one, did 52miles yesterday, had a blast but my keester was done by the time i arrived back home, and this was with my most comfortable saddle.