hello dave i am having my hawk getting built now. i am using 8711s all around. what servo arms do you recomend. are you using metal or the ones that come with the servos.. also i bought the completion package for the landing gear and doors from comp arf .. it has three cylinders for the doors . two for the rear and one for the front door. will it be ok two use one door cylinder for the front instead of having two door openings.. thats what the directions say.. i just want to do verything to your specs. anything special i should know about ? third do you recomend putting the wing fences on also... thanks pat rose