Trike Steering
No one can argue the fact that it is completely possible to ride a Trike without a modification to the front fork.  With that said, I believe that modification makes the Trike more enjoyable to ride and easier to control than the OEM front fork.  Different Trikes react differently to modification, but none are less desirable because of it.  The selected kit has to be properly installed and the steering stem bearings have to be torgued at least twice as tight as the OEM stem.  This removes any so called sensitive reactions.  Long before Trikes became popular motorcycle riders went to sidecars for more room and stabilty.  With that came harder steering and the use of leading link front forks to reduce the trail of the front wheel.  There are some pictures and diagrams of leading link forks below.  With the advent of EZ-Steer, Power-Trak, and other similar modifications the trail was reduced without much change in the overall appearance.  There are several manufacturers that make 1500 & 1800 trees, but Steerite by Pete Smith stands alone for the 1200.  Below are also some diagrams and pictures of EZ-Steer and Steerite.  I found that with the Steerite tree I had to extend my forks, so I had a local machine shop make the extended fork caps you see below as well.  The 1500 from CSC comes with longer tubes to accomodate the increase in angle.
All in all, It was probably the best investment I made in our two Trikes.  Try it You'll Like it---Bud
A 2" longer Tube Cap
to Extend the 1200 Tubes
The 1200 Triple Tree
Reworked by Steerite
Leading Link Front Fork
on a Goldwing