I like my SRT line up in place at the TIP/ PSP, allowing me to limbwalk and work my way up as needed. Last tree was bomb into the yard on one side, limb walk out the long bottom fir branches to chunk them shorter and over the fence. No TIP would have worked against me.
If I am going to descend a spar and don't have a hole lot to guide my flipline around, I use a munter on the pull line, keeping my flipline and spurs to catch me in the very, unlikely scenario that it breaks, and I can leave my choking climbing system in place, if I choose.
In such cases, I figure that its a rappel line, not a life support line, as a lanyard is effectively a DdRT micro climbing system.