Looks like a nice set-up. I have problems with mine when the sun is slightly behind me. I'm not sure of the mechanics of it all, but the the sun shields provided with my chronograph are pretty narrow. Seems like the sun has to be within a certain range overhead for the shields to be effective. A friend was having problems with nearby shooters affecting his chronograph. The shock was apparently causing blips on his readings. Maybe your set-up would prevent this. It's pretty solid and covered.