Picked a Jr. up today and upon looking inside the pressure bar looked pretty bad. I pulled it (intact) and polished it with some Maas to remove the corrosion. My question is, how far up does this thing go to seat? I tried to keep a good reference of where it was, but I'm not sure it was in it's proper place to begin with as the lever was very floppy. So should the end of the lever hit on the raised hump on the bar, then stop at 90 degrees at the little "tab" on the right in the pictures? Also, does anyone have any reference to how the hook at the end should look? The thing just falls into the barrel which is something I've not seen when replacing Estie J-bars. Also, what size sac do the Jr.'s take? Really, any help I can get would be much appreciated as the pen is in pretty good shape otherwise.