I prefer the Hi-tek style rod holder system, myself. Basically because I don't like grabbing for the rod and having my hand/wrist poked by the forked tines of some of the other style rod holder systems. I've never owned anything but Hi-tek rod holders, but I have fished from other boats with the forked tines style holders. My current setup works very well for me, but if it was a matter of adjusting the height of the crossbar ... I could always go to the Cumberland Crappie 360 model Rod Holder (which has an adjustable height T bar & similar style holders).
Any setup that has a bolt head or knob protruding up in the "saddle" (between the loop the handle end rests in & the notch where the front end of the handle lays) or forked tines is not going to get used by me. I don't need any "knuckle busters" or hand/wrist "pokers" delaying me from grabbing the rod as quickly as I can, especially if I have to grab the handle from that "saddle" area or past the U or V shaped tines.

I did add "knobs" to my setup, so that I'd be able to adjust the holders without the use of any tool. I don't Spider Rig often, but mainly Push jigs/cranks. And I use varying lengths of rods, so I do change the angle of the holders on occasion ... and those knobs allow me to do that by hand, on the fly. If I had it to do over again, I would consider the longer style knob that comes on the Spyderlocks ... but, as it is, mine work fine for their purpose.

Here's my setup (for clarification) :

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Now, this is just MY opinion, based on my experiences, and not a promotion or condemnation or any product.