I think I have tried everything out there because mine is on all day everyday , As others have realized there isnt much out there that can touch the Hakko 701 for desoldering :)

Just a small tip for people that own them , Hakko calibrate their optimum desoldering tip temperature with the control at zero , (all the way anti clockwise)  , You will find when left in this position it will work perfectly all the time , if you try increasing the temp it will start melting the end surface of the desoldering tip , it will then become uneven and jaggered .
You will know fairly quickly because it will damage tracks easily and seem like it's not hot enough.

The best choice for anyone serious about board repairs :)