There are quite a lot people posting here half an oil pad or a cut coarse sieve is good to reduce bowl size.
Mix it, tamp it, let it loose or half empty, use kief, hash, ice-o-later, weed, e-cig juice, shatter, wax. Everything works great. Be careful when using oils or liquids, don't overfill or it will run trough your heater or mix with herbs. Never used oil pad.
@shredder
First hits are great, a little like pure shatter. Taste diminishes fast because spend ABV particles on the bowl wands are tasting like popcorn. Not for taste chasers, more for heavy stoners. I need nearly half the batterie to finish the bowl on 210 degrees until nothing left. Endless clouds.... Very dark brown ABV left, almost black. Not sticky, slightly oily (depending on strain, too)
Should have added you can hit your device like you used to after the kief melted slightly to a puck, depending on how packed you fill the bowl.