The Guadalupe flow on my side is controlled by how much water they are letting out of Canyon Lake. It has been really low this summer because of the lack of rain in the areas that feed the lake.
I have a scoop that is on the small side so I run the small coil on my Quest Pro. It handles the current better too. I found a place that has a small waterfall that creates a shallow pool and I have been snorkeling there. It is certainly easier to fan targets than scoop them. Hope you get to do some snorkeling soon. It has been in the 90's here.