scrape less? Uhm...naw dude.
wax should be IN your board, not ON it. Scrape that shit all the way off.
Dude man..I'm a maniac of waxing. I have been for the past 4 years. I used to scrape the hell out of it. I don't know if the sintered just absorbs and wants more...but leaving the board much greasier than usual (and having those snow conditions) made me slip trough flats and mini - hills I ALWAYS was short a couple of pushes.
I zipped trough them yesterday.
I'm not saying you don't have to scrape. I Do lay once and press the hot wax twice.,.that leaves a very even layer to start with. ONE deep pass with a sharp scraper did it for me. Wax was still plenty and very well conditioned in and over the base.
2015/16 -9- Kirkwood days
Arbor A-Frame 158 2009-10
Jeremy Jones Hovercraft 156, 2011/12
Subaru WRX 06