Belly pans on the MKII VWs works VERY well. If you don't have the front factory belly pan in place, that is my best recommendation to start. Full pan is better, but just the front is considerable.
I started with an upper grill block, black ABS plastic behind the stock grill. No one ever noticed that I didn't tell.
Got looking at your fuel log the other day and couldn't figure out why I hadn't seen you before. Then I looked at your sign up date. Not a stalker, just another VW nut