Honoring Murphy's Law, I ran over the only puddle of water on the entire runway, on take off.
After landing I found out that I had water all over the electronics. Most likely the spining wet nose wheel (after retraction) causes some of that.
Here is a simple suggestion for avoiding it. (underside of the electronics plate is also blocked with 1/8" balsa under the gear wheel cut out)
Hope this helps
Jack