IMHO -
If you can't spider rig the waters, you'll probably not be longlining or pulling/pushing cranks.

Bee Ready holders don't have a deep U bracket, so they might allow the rod to be pulled cockeyed in the loop or even pulled out of the holder if you're fishing out the side or off the back of the boat. You might be able to "push" from the front, but you'd have to know the area well enough to keep your baits above the tops of whatever cover you're running across.

Pushing/pulling cranks, longlining jigs, and even spider rigging (for the most part) are open water techniques ... where you work your baits "close" by cover or over top of it. Knowing how deep your baits are running, how deep the tops of the cover are, and good boat control are essential factors in these techniques. Longlining & pulling require constant forward motion, even when you get a bait hung up, in order to keep the other baits from doing the same. That's difficult enough in waters with scattered cover, and nearly impossible in waters with heavy cover.

Now, this is all just my opinion, and there may be ways to do these techniques that I'm not aware of, or considering.

... cp