If you have a poor swing that requires lots of compensations and corrections to make the ball go straight, adding a fluid rhythm via the orange whip, or adding speed via the speed sticks, probably isn't going to help with scoring. That was my experience with the orange whip anyway, although I can see the logic as a warm up tool. There were plenty of gains to be had for me (and still are) just from more consistently hitting the middle of the club with a square clubface, and being more efficient with the speed I already have.
However, I think general core strength work is a good idea for a plethora of reasons, some golf, most general health. From a golf perspective, having a strong core can only help. Personally, if that's your goal, I'd go down more specific core strengthening training for golf rather than the speed sticks. Or if you want the speed sticks, a combo of both.
