I am pretty new only been betting offshore since about 97 or 98.
I have never used them either. I do use Betjamaica right now. But Olympic honestly doesn't do it for me like everyone else. I have monitored them along with every place else, and while they might be the first, that doesn't mean a lot. Until you have someting to compare it to, a posted line doesn't mean a whole hell of a lot.
I would rather wait and see an opener somewhere else that is half a point better and buy that, than watch the line get moved by all the "sharp" action to give me possibilities later on.
First is rarely better.