If you want to go over 44 foot use an SL2, there is quite a large difference in weight between an Xtreme and SL2. I've owned both (still own Xtreme)
Sadly couldn't quite use the two side by side as the SL2 was sold the day I got the Xtreme in, but it seems that the Xtreme is slightly more flexible. But the difference in weight is very apparent, even at lower heights. Wouldn't like to use anything but an SL2 at those heights.
The Xtreme is easier in use due to the telescopic nature though, but if you are working at that height it's lightness all the way.