I’m looking forward to hearing about your experience with the pump recirculation. I tried the co2 rousing method once but felt I was driving all the hop aroma out through the blowoff tube so I never really made any comparisons between the two different methods. If rousing proves to be as effective as pumping, it certainly would be the easier way to go.I've not needed to rouse yeast.
If you meant rouse dry hops yep bubbling up some CO2 through the dump port works really well. But I never stop playing and have recently built a pump based recirculation system like the one described in this post: #31 by @k-daddy
my own pictures and will be added soon. but I can say it seemed to work really well for making sure the pellet hops were fully dissolved and well mixed with the beer. Also want to get a couple batches done and see what I think of the impact on the beer.