Well to start off ...me and a new found friend were at the field doing some formation flying then we started getting a little crazy we were doing the ( how close can we get to each other head on) and... Bam...mid-air....I was flying my GP big stick 60 and he was flying his seagull zero....on impact my stick cut one wing and the tail off his zero....the zero went down in flames ...the stick suffered damage to the left wing and landing gear but was able to keep flying ...I got it back to the runway and landed it with no problem....in the frontal pic of the big stick I had straightened the gear ..it was bent up 30+ degrees from the pic ...Then 2 guys crashed do to radio problems the heli,do to gyro failure...Now the 3d...I was flying inverted at about 6' over the runway then when I banked left a friend (coming from the other direction at a higher altitude ) pasted over me I tried to roll right and my wing tip clipped the ground causing the plane to cartwheel nose to tail ...I was very happy that the damage minimal ..the damage consists of wing , landing gear ,cowl, spinner & prop canopy,horizontal stab....I haven't had the time to look it over so it my have more hidden damage.....pics of the GP big stick and the 3d.....JW