Yes, I am working on retrofitting Lagunas for two companies at this time. The 2400 is a super pump. Restricting the air though results in more water turbulence, so its best to run it full. Cutting the impeller/mesh diameter, or restricting the intake though is the next challenge... as in... can the electronics of the 2400 compensate for the power correction needed (usually, the power factor will drop and the pump, although functional, will lose efficiency and heat up)? If not, perhaps the motorblock from the 2000 is a better unit.
Other than that, watch out... the Laguna 1500, 2000, and 2400 will be coming to some skimmer mfg's in the very near future. Thats why I havent been posting much on my work with them. One of the two companies is even interested in the 900 as a possible alternative to the eheim 1260/62.
Also, there will be a model even larger than the 2400... alot larger. This thing will run at about the same wattage as a dart (actually, a bit less), but have about 5900lph of output. Yes, that is almost SIX-THOUSAND liters per hour... for about 120 watts. You will see it if someone can build a skimmer large enough for it. Keep in mind, a skimmer that size would require about a 20" diameter bubble plate, and an 11" neck diameter. Oh, and the pump is powerful enough to run in a column of water that is 4' tall and still generate those numbers... no force feeding needed. It could get by with a 10-12" diameter bubble sphere though... so an 18" cylinder is still possible.