The hash available here does not melt. I vape either soft pliable Afghan hash or rock hard Moroccan hash. After vaping the thin pancake or slice of hash it is the same shape as it was going into the chamber.
For concentrates that melt, such as rosin or shatter, I use a concentrate pad.
Here's how I go about making a concentrate pad for a Vapcap tip.
I start with a flat disk shaped S&B concentrate pad.
With a pair of flat pliers I start squishing the edges of the pad. Slowly its diameter reduces and it starts turning from a disk into a cylinder shape. Just keep turning it as you press against the sides of the disk until the resulting cylinder is the diameter of your Vapcap tip. The wire is pretty easy to reshape.
Then I take a sharp pair of cutting pliers or even a good sturdy pair of sharp scissors and cut the cylinder in half. There may be a few loose strands of wire that you can shake off. But generally the pad stays intact.
After I cut it in half, I tap the cut end to loosen any bits, then I sort of scrunch it up together as tight as I can with my fingers to tighten its shape and stuff it into the tip. In the picture above you can see the scrunched up one on top and the other cut up piece below it.
I just butter the top, put the cap on and heat maybe a second or two past the click. I either heat the cap using my Skelator IH, for night time indicas, or with a jet lighter holding the Vapcap at about a 45° vertical angle. Once heated I tend to hold it in a more or less horizontal position.
You can see here the concentrate sitting on top of the pad which takes up the whole chamber.
I love vaping concentrates this way. Often I will put a good amount of shatter on the pad and take it out with me as I do chores around the property. It's an all day sipper. Heat and a toke then back in the pocket till later. My only caution is that it you put more than you're going to vape in one go, then keep the Vapcap horizontal until it cools before showing it away.