OBSTRUCTION going into 2nd???

[PFISTO]

Well this play has happened to me and yes F6 was covering the play and his right knee was blocking the bag, was it 75% who knows but he did block the runner from making his base. The ball thrown byF2 was right on the money knee high on the right side of the bag. When the coach came out to argue about blocking the base I told him that F6 went to the ball and made a good play. His response was that F6 must have the ball to block the base and my answer was Coach F6 went to the ball which was at the base and made a tag. Now I guess where the judgement comes into play is what if the throw came in on F6's right shoulder so he had to reach for the ball and was still blocking the base would this be obstruction. I believe it would. And for me the deciding factor would be did R1 slide into the glove or did he slide into F6's knee and then get tagged.