And for what its worth, I've found that almost everyone I've given a dogstake lesson to has been able to find moderate control within a short period of time - it actually is pretty easy, with the right convention to get you through it.
Depends on perspective and the system you're using.
1 - If you are flying normally and hook your lines around a pole into dogstake position, it is far easier to then switch your handles and fly the kite (seen from the back) as if everything were normal - right goes to your right, etc.
2 - If you're using the Dark Spark rig made by Mikey, you don't "hook in" the same way... Everything is grounded, pilot stands between the lines (facing away from the kite) and flips the handles inward so AS WE SEE IT in this position, the lines go from the handles, into the center of the dogstake, go around the pulleys and exit toward the kite on the outside perimeter of the dogstake unit.
Here is a partial perspective with a dual line...
Pilot lines into the center, kite lines exiting the outside of the unit.
Another perspective with quad line, bear in mind the kite side has twists in and is parked upside down (handles are always upright)...
Again, flying the way we fly - we look at the back of the kite and pretend everything is normal, as if we were looking at the front of the kite - in a way, the hardest part is trusting the controls and NOT trying to compensate for anything.
@Flight Risk, @mystainedskin and @windpoacher (very experienced pilots) all had a go during the Team KiteLife 4-pwerson dogstake exercises, we used three Dark Spark stakes (the 3rd on loan from @cyclic) and one homebuilt unit brought along by @Amexpmh.