Mike for many years I used sponge rubber soaked in fork oil under the dust cover to help keep things clean on all my bikes (dirt & road), it worked great on dirt, mud and dust but dried up bugs were still a problem so I tried the scourer a year or so back and the results have been great.
With the V2 having upside down forks and fork guards I did not think the scourer would be required but I was wrong, I got a leak, the Dr and scourer took care of it.
I will continue to use it until it stops working or I think of something that I think may work better.
Some of the 19 rides in my shed
2014 V2, Snoopy
2009 Wee, Pumbaa the pig
WR450F, The Blue Postie Bike
YZ250N smoker with rego, Stinky.
Yamaha MT09 (FZ09), The Scud missile.
Club Lead not Club Med.
He with the most toys wins.
Out of my depth in a puddle.
Live life on the edge you will see more that way.
Ridding a motorcycle keeps things in balance.
At the end of each trail and at the end of each day history is made.