Does anybody know how well the Microheli Precision CNC Head System works on the Blade CP Pro? I am more concerned with 3D inverted flight thatn anything and overall performance. Also, which gear to use with the system... Does it have the CP's Bell-Hiller Mixing arms or the CP Pro's? The item can be found here... [link=http://www.microheli.com/mhshop/product_info.php?cPath=98&products_id=366]http://www.microheli.com/mhshop/product_info.php?cPath=98&products_id=366[/link]. Please let me know if it is worth it to buy, or if it just inhibits performance.