If anyone has experience using the MSA 10 Futaba matchbox or the JR variety, I would like your opinions on my set up.

My aircraft is going to be in the 25-27 lb range. My servos to be matched are going to power my landing flaps. They are 3" x 60" long (total area). I have a 3 piece wing, so I am using 4 servos, as the flaps get split at the wing separation point. So essentially, I have 4 flaps. I actually used a tongue and groove joint at the separation, to keep the intersection joint clean and tight. For RX power, I am using 2- 6.6 volt A123 batteries, on separate switches.
The designer recommends 120 oz. servos for the flaps. Mine are around 130 at 6 vols, and are metal gear. The flaps will only be used for landing, so the servos will only have to handle lower power settings (not like a 3D aircraft with multiple servos on a big aileron).

My question, I want to put all 4 of theses servos into one matchbox. It will take 4, and they can be adjusted independently. Also, it facilitates the ability to accept a battery of it's own to power these servos. I am thinking strongly about doing this. I have seen some comments in other threads (old) where they do not recommend putting more than 2 servos into a matchbox. Will it be OK to use one matchbox for 4 servos? Especially since it will be for flaps, and I will add a separate power source.

Thanks in advance for any opinions.