You may want to consider bumping your CYA up some. Sometimes, people who live places that are very hot and sunny find that having a little higher CYA allows them to dose with bleach less often. One of our former mods lives in NW Louisiana and deliberately keeps her CYA around 80ppm. Just something to think about. If you do decide to raise it some, go to 60 for a couple of weeks and see how that works on your pool and then go a little higher if you want. Gradual increases rather than big changes. Easy to add more CYA, hard to lower it.

By the way, if you are diligent about keeping your chlorine between the minimum and maximum levels based on your CYA, you should seldom need to shock. Pool stores and pool chemical companies tell you to shock weekly but it isn't necessary. They just want to sell more chemicals.