Welcome to the Newschoolers forums! You may read the forums as a guest, however you must be a registered member to post. Register to become a member today!
No, a hot scrape is for cleaning your bases. If you iron on the wax and immediately scrape it without letting it harden, it pulls the dirt and impurities out of the "pores" of the base. However, it also pulls out all the old wax, so you need to rewax, let harden and then scrape a second time, or you are negating the purpose of the wax.
I'm sure you could argue either way. I personally just let them chill for an hour or so. I like to wax all my skis at the same time if possible. So I will wax one pair let it chill, and then go on and do my other skis. By the time I am done waxing them all, they are ready to start scraping.