Muscles it definitely has fixed it, it used to flutter on the spot upwards. A video, well ok, my tamping is crap though and it brings a whole different meaning to the word flutter, different to what was happening before though, it will start at 9 bar and swing to 8.5 bar for about 10 seconds as it goes through the coffee and then stays there for the rest of the pour. When I do a solid tamp the gauge stays in the one spot the whole time even though it's over, I might have to show that instead, so people don't think I was trying to get rid of something that is user error LOL AM I did talk to OH about it but he didn't think it was necessary and I guess I like to try and work on my grind and tamping myself rather than having the OPV set to a point where it maxs out so you don't really have to care whether you've tamped too hard. What was the point in changing it at all, well so if I did get chokers they might be salvageable 🙂 In thinking about it, maybe I should put it to a spot where it can max out every time, I'd be consistent then 🙂 Oh that last part, it sits so close to the back panel that I wouldn't have to worry about hitting anything.