Best advice, I can offer is take everyone's advice and pick and choose from that what you are going to use. What the old saying opinions are like something everyone has one.
It's ok to look at other forums. One of the armies I have recently started very few people play Tau. There are some great forums out there dedicated to that army alone. I've looked at them and taken some idea's myself. The best way to find what works for you is play as many games as possible and watch as many games as possible that use your army.
I played in a tournament in atlanta once with one of armies that has won a couple GW GT awards and I had a game were I barely won and it was because of a mission rule, but my opponent had decimated my army and at first I didn't think much of the army, and when it played it rocked. I have sincee built an army similiar to his using the same tactical base but different units. Best thing was my opponent was 12 and came in second in the tourney with close to 60 people in it
That said if you think your wolf priest is only going to need 1 power a turn the master is a waste. There are some situations were it is a waste, if you cast your power and then charge into hth against a bunch of 1 wound model's there is nothing lost.
Try both see what works for you
Troy (Grimwulfe) is good with the wolves!