Truls also needs more points to be sure that he took Harimoto's 4th place after Fukuoka's points expired. No one wants to meet Wang Chuqin or Lin Shidong, in China, at Quaterfinals. With 4th in ranking he will also avoid LSD or WCQ or Hugo until semis. So basically Truls would some benifits if he can go further in Frankfrut.These kinds of things/speculations are inevitable between teammates since the rankings have limits on number of events counted. In the end, the results are the results.