Thanks Pleiades, that makes sense.
I've heard of this way of oiling the filter but thought that the DNA oil was also an aerosol like the K&N
The spray-on that I used was quite sticky and after covering both sides of the gauze thoroughly I'm sure it restricts airflow to some degree.

__________________
2014 XT660Z - Barrett pipe, DNA stage1.5, Barkbuster hand guards and handlebars, Pivot pegs, Teknik suspension, Guard-it engine protector combo, B&B rear rack, Trax topbox.