I need your opinons.... I am considering either a Ehiem 1262 return pump which according to the specs I have found pumps 898 GPH at 80 watts of power consumption and a max. head pressure of 11'. Or a Tunze Silence 1073.04 which produces 792 GPH at 42 watts with a max head pressure of 118" (right at 11'). My overflow will be rated at 750GPH. The Ehiem is a little more money from what I have found so cost is not an issue with that little bit of a difference. Both brands have great reputations just haven't heard alot about the Tunze return pumps. Your thoughts?