Reddit mentions of Herb Grinder Card, Classic V Design by V Syndicate

Do not buy it from a head shop if you can avoid it. Expect to pay upwards of $150, plus you might end up getting an older model without the ball and latch like I did.

Amazon has the cheapest rate, but if you can't buy from them, puffitup has the best deals in my opinion.

I'd consider getting an extra glass stem. I'm very careful with mine and it has already cracked. This may have been a result of pushing it too hard into my stem while it was orange with resin, and I didn't notice it crack. I never saw the cracks until I saw it. cleaned it.

Go on youtube and look up how to clean the launch box. There's one guy on there who has a brooklyn accent who does a good job of explaining. Cleaning can make a huge difference in taste, the smell of the box, and how well it heats the plant material. I recommend cleaning the box once a month.

Expect to buy new batteries every three months if you use it daily. Batteries are cheapest online. Energizer batteries have an annoying glue that is hard to strip. No name brand batteries (like the InfiniCell ones I bought) tend not to work very well.

When it comes to grinding, the finer the better. Of my regular 3 piece grinder used upside down, a plastic two piece grinder, a mini two piece metal grinder, and my grinder card, the most effective thing was the grinder card. It helps if you compress the nugs a bit so that you can use them easier with the card.

Write down your serial number and keep it in a safe place. If you ever lose your launch box, you will want this number to get a new box at a discounted rate, or send in your box if you damage it to the point you can't read the serial number.

I find the launch box is about 3-4 times more efficient than smoking. You will save yourself a lot of money very quickly. However, if you use it every day your tolerance will skyrocket. Beware of this.