I just read his advice earlier today on the DP website about the aileron servos. He recommended as stated, 100oz/in minimum for the primary, but said that a premium mini servo was sufficient for the secondary servo on each wing. That kind of sounds fishy to me, but then I don't own that plane (it's a money thing right now) and can't comment 1st hand. Now about Welsh3D who is running standards in the wing of a H9 Edge. Yes they will most certainly work fine, but I would be afraid of the obvious, that they will fail a lot sooner than you would expect! A mini servo might do the trick too, but the strength thing comes out best in how long the servos last before they cause a crash. I'm using 110oz servos all the way around, one in each wing and pull - pull on rudder/elevator. I don't want flutter or any other thing to cause a premature crash. Just my low budget opinion.