The latter may be used by any committee for any level of competition. There was a time when the newly introduced local rule was used by committees who wanted to elevate the status of their comp. I think that idea bit the dust a while back..
You are all very welcome, this is a dream trip for me to plan. I am glad we have two groups because three would have been a real mess trying to get tee times. haha
The longest hole on the Sandbox is 145. I'll probably just bring a few wedges and my putter. That will be nice for a light and easy going round on that course which is I think 17 holes. The customer service agent today told me it takes around an hour and a half to play it.