I use a form of spider rigging quite regularly from my kayak. 3 poles, a 20 footer, a 16 footer and a 7 foot rod and reel. I use this method very early after the ice leaves and then throughout the mid summer from time to time. Works quite well for me. I also troll, but do it a bit different then most would expect. I actually do it in reverse at a very slow pace. This allows me to keep a constant visual on my rods/poles. I use the same rods/poles as spider rigging until I find the fish, then I just concentrate one rod and reel on using whatever bait/jig and depth that I found the fish at. I start both methods with 2 different bait/jig combos on each rod at different depths. When I begin to hit fish on one or 2 of the rigs, then I just concetrate on that set up at that particular depth. Pretty standard I guess.
It is not about the equipment you have to use,
It is about how you use the equipment you have. :D