I never had a problem holding my 15's, in fact I don't think I ever had them on a tripod. But the majority of my 15 use was for 3D shoots. I'm not as much into the scores and winning anymore, so I sold my 15's. But yes they are heavier than 10's.If you do ANY still hunting there is no way to hand hold 15x. You’ll go nuts trying to glass as you hike with 15x. I can’t imagine having to set up a tripod every time I look through my binos. Im constantly glassing with binos around my neck as I hunt.