when I originally replied to your thread, you had made no mention that the rifle was supplied to you up to that point and that you had to use it. You only did that after I replied to your thread, so I did read all of the thread. This was why I ( and others I am sure ) was thinking - why keep using a rifle that you dislike? Just an observation.
I have a Tikka T3 as well as a Sako 85. I find the T3 perfectly fine to use, It is every bit as accurate as the Sako 85. I agree with some of your points, I changed the bolt shroud to a metal one, I prefer the safety catch arrangement of the 85 where you can open the bolt with the safety catch still applied, a definite safety advantage. The magazine can be inadvertently dropped from the rifle if you are not careful, as the mag catch is easy to depress, crawling through heather for example!
Very few rifles are absolutely perfect though and as long as you are aware of its weaker points then the rifle is perfectly fine to use and well liked by most people.
The rifle is however substantially cheaper than a Sako 85 for example, the latest versions have gone some way to improving its weaker points, it is however a very good rifle out of the box.
I am not a professional user such as yourself, so I do respect your views but I do like the rifle - where as you clearly do not.
There is obviously a very good reason as to why it is and has remained so popular. Prices are creeping up there now though!