I tried the Bullshop stuff and I must have used to much as it migrated into the cavities and then I had to stop production to clean them out. I tried it a second time and same result. So with a qtip you just lightly touch the bottom of the sprue plate and the top of the block? Do you let it sit or keep casting? When I did this it just went into the cavities. I finally gave up and I use it as a bullet lube but I would like to give it another shot to see if I can get it to work.