So I took a few minutes (and I do mean a few) to look this over today and with the linkages in the first hole of the servo pitch horn (stock) no matter wich way you put these parts on does not effect the movement of the servo or make it bind in any way. This leads me to think (initial opinion now) that it really does not matter wich way they go on as long as your using the stock setting on the servo arm and you put them both on the same way (for weight and balance). If you do use the second hole on the servo arm than they should definately be installed with the larger slot down.

As far as flying out side goes I rarely fly indoors other than in a hangar during lunch time. I used the helicopter with the servo linkage in the second arm of the pitch horn for about 3 months now flying almost every day with absolutely no clack. The clack actually came when I removed the weights from the stock flybar and just left the rubber ends on. This made a MAJOR improvement in flight capability but the much faster forward air speeds led to more blade flex wich led to......CLACK!!!!, CRASH, BURNT OUT 4-in-1, ORDER MOSFET, REPLACE MOSFET, INSTALL 3A FUSES, SHORTEN FLYBAR WITH CP WEIGHTS, to NOW. Testing continues and flight capabilities improve daily.

If you really want to see if you have beaten the CLACK this is how I do it: Get the heli in full forward flight (Low altitude full Fwd RT stick combined with Full FWD LT stick), Then once it has achieved max speed quickly pull full back on the right stick. If there is no clack bring the heli to a stable hover about 8ft off of the ground. Now, fly the heli in reverse at full speed completing turns and using times when you are at full left stick. Bring the heli to a stable hover approx 30-40 ft off of the ground. competely dump power and about 10 ft from the ground give it full left stick. Obviously use good judgement on this!!!!! If you dont feel comfortable doing it DONT! If there is no clack you are probably good.