Couple words of advice. Let them get close, dont move & they will! I shot mine at 5 yards & 7 yards 30 seconds apart.
More often than not the groups follow one another. When you see one group go through, let them go & move close to that spot.That seems obvious, it is. I saw bou follow in the footsteps of others for 2 days.
It is impossible to run faster than they walk. I wasted a lot of energy trying to get ahead of groups of big bulls. Glad nobody had film of that, must have looked funny.
Quality raingear is an absolute must. The crappier the weather, the more animals we saw.It will rain, lots... & lots.
Have fun, you will!