Just ordered my second Bear Quartz Bubble Cap. I got my first one three months ago and I’ve been extremely impressed with its overall function and the ability to quickly and easily clean it. The air path holes are the perfect size to get a q-tip into when the cap is warm to wipe any built up reclaim out. Just bend the tip of the q-tip a little to get the harder to reach spots. Between the occasional wiping and giving it a little iso shake once a week it’s been the only clear cap I’ve ever had not to char or chazz from cold starts or hard use. This last parts weird but trust me if you have a bear cap and terp pearls. It works to spin them. Not like a tornado or a cyclone cap does, but if you face the bear etching towards you and then spin the cap the way you normally would with a bubble cap it spins the pearls. I don’t know why it only works when the bear is facing you but trust me it’s a huge difference in how they spin.