I get what your saying.
You are restricted in a few ways because the parts underneath the shield are limited to where you can attach the shield to.
The filter is very right and the feed off the grill is very left so you struggle to get Good angle and still be able to screw it to the oem position on the front panel.
The height and slope of the bonnet makes it easier to put the shield where I have it.
For the 45mins it took to make it'll do for me
I sprayed it through the he front panel with my airline and cold air defo meets the filter as it is