Umm, you could start by using high quality metal servo arms such as (maximum length of 1-1/4")SWB (www.swbmfg.com) Hanger 9 metal arms (www.horizonhobby.com) or Sure Link if you really were serious (www.sure-link.com)

You then can use a ball bearing swivel ball link (Hangar 9 took over Rocket City and sells them) 4-40 Heavy Duty ball links attached to the metal arm


Use Hangar 9 Titanium Pro Links for pushrods and then use a quality control horn like maybe www.cactusaviation.com sells, and either another ball link for that or use a steel clevis which again Horizon Hobby sells.


That is a very very solid linkage proven in many of the GS planes and pros.

If your still not getting desired throw, then buying a kit and building it and doing a proper double bevel will do.


40 degrees should be a good amount for 3D flying