SXE10 Stabilizer bush

SXE10 TOYOTA Altezza has a stout frontal stabilizer formed with about 20mm pie hollow pipe and the tightness on supporting bushes at hinge portion was too loose to take effect in the beginning of rolling situation, so I applied 2mm thickness rubber sheets between tightening bracket and bush rubber in order to harden the capability of hinge bush, as a matter of fact, no effect was perceived especially on the stability of straight running, but the sense of push-up has been increased probably because of loosing compliance there. No advantage was obtained instead just a bad ride. Another bushes like rear arm hinge bushes those are so flexible might have been affected consuming the effect by the hardened frontal stabilizer bushes by an ordinary layman.
Now, the result led me to the conclusion that any modification even on the hardness of one parts never invites better result but it becomes worse, because the compliance balance had been well tested by the factory drivers and engineers with professional standing of view considering an ultimate balanced automobile, so any modification should me allowed even a piece of rubber bush and this is why the replacement parts are defined promptly by the original manufacturer.
I should know this unmovable principle by my own experiences, I'm sometimes weak to bow to the whisper of the Devil. Because the procedure of removing the inserted rubber sheets on the portion without peeling engine room lower cover, the direction of the bush clamp bolt were toward the ground and invisible, it was a complicated and time consuming work, additionally have I muscle pains in my arm and shoulder today.