Tamping. How hard is 30lb?

I thought I'd throw together a short video to show what 30lb of tamping force looks like.  The Espro tamper has an inbuilt mechanism that is calibrated to 30lb so you know when to stop pressing down.

I was tamping much harder before I got this tamper.  It has been a really useful little tool, and has helped prevent spritzing when using the bottomless portafilter.