I just checked the plans I have for my 4*60 kit. They show 0 deg side thrust and the thrust line was 2 5/8" from the bottom of the firewall. I have had mine for 2 1/2 yrs she has 150 some flights on her. still enjoy flying her put on dual rates and she rolls pretty well.
so what happened.....how did you find that tera was firmer?