jeff I wasn't too sure how to say it at first but thanks for your suggestion, think its something I could consider doing. aaside to that I'll have to mull it over a bit on the track handlaying part
edit: should I add that the part of having to run a bit slower was a side effect I wanted? I couldn't imagine a visiting driver sending the poor KIHA unit off the track into the thick trackside bush because he was being incompetence at thinking that he could just hold the throttle all the way open to get to the station a bit faster?

(but at same time keeping it smooth enough that even a stiff 3-coupled steam locomotive would not have any trouble with it)
mind you I used to have one tight curve with flextrack on a 4x8 layout near the fixed turntable pit some time ago and a trix 2-10-0 steamer [that used to work at the time] could take it if it went at a steady pace but as soon as you ran it fast...watch out it'll end up all the way off the track upsidedown, tender including