Mine is essentially the same type of mounting. With the rods installed, the splitter is able to take a quick 150MPH.... no issues.. and continuous 125MPH also has no issues.
Track day one is complete.. Day two tomorrow.
The down-force is there. I am taking turn 10 at VIR (full course) much faster...
The negative, is that I now need to get that small lip for the rear to offset some of the front down force. I say this because I have never slid the rear around at turn 3 (NASCAR) but I did it today. Now I am aware of it so it has never happened again...much....