RE:Hey Roballen (or anyone)...
Its very true the Mothers day caddis hatch is the thickest hatch of the year but the weather in late April/early may can leave something to be desired and the hatch occurs better on the lower river with not as many caddis in the upper river in Ennis.
If you have a week to spend there you'd likely see some great fishing if you were going for just a day or two it would be a gamble as far as the weather goes.
Another time of year that is great for caddis flies is late July and the first week of August. The caddis arent as think as the early season but there are enough to be annoying and in the evenings breathing and eating often happen at once *L*