keep your current set up and learn to use it properly
The smoothbore is the only realistic way to reduce the nr and maintain effectiveness. My experience with low pressure fogs....well I wasn't impressed with they're penetrating abilities, but my experience is rather limited in that regard.
Here is an argument to encourage you to stay with your current set up. Many people when they do hose practice or want to see what pressure they want to fight fire with they do it while holding the hose standing up and trying to advance it similar to combating a car fire. I have never seen a productive interior attack on a house fire done this way, be it on video or in person. Keep your current set up and just remember that you are low to the ground in a fire so use the ground and your backup man to your advantage. Or bear down in the door frame to the room or the wall in the hallway if it's possible.
Nozzle Reaction and Effectiveness
I would recommend focusing on training your members to manage the nozzle reaction as this has a positive impact regardless of the nozzle type, flow rate, pattern, and resulting nozzle reaction.
I concur with the posts that question the effectiveness of low pressure combination nozzles. Fair performance on straight stream and poor performance in a fog pattern (extremely large droplets). The solid stream nozzle is a better choice (than a low pressure combination) for direct attack (only), but if you also want to be able to effectively cool the gas layer, a 100 psi combination nozzle will be much more effective.
I have found that good technique and teamwork solves most nozzle reaction problems!