I wouldn't do it, even the best international wicket keepers in the world doesn't do it ,if it is this obvious then they would be the ones to do this kind of thing regularly.
You can say in league cricket we don't get that many good bowlers but end of the day everything is relative, we are not good as them keepers either so that's why we play in league cricket.
There was a guy in our team used to go to bat without box to bat saying we don't face good bowlers in these leagues only to get hit in the jewells and he started wearing one after that.
I wouldn't do it , but it's your choice.