Slick tricks for fixed and shot swhacker for expandable. I ALWAYS sharpen broadheads prior to use, even though they are sharp from factory. Both Slick tricks and swhackers have been great on elk for me.
The Bob is great. I don't think the extremes would be too tall. As far as insulation goes it really depends on your style and you personally. If you are on horse(which is the only way I go into the Bob) Can you pack some lightweight(less insulated) hikers on the horse and ride in wearing...