Hi Guys, I am new at this, please take it easy. I finally got hold of an Anschutz 2013 (From the classifieds). It came with a bloop tube and a tuner. I have a tuner on my sporter and it has threads on the inner diameter and on the center post (on the outside). This tuner is a year old. The tuner I got with my 2013 only has threads on the inner diameter of the outer ring. They are both Harrel tuners. Is my new one one that accepts weights if needed? Also, can I use the bloop tube and the tuner together? Or is the blood tube to be used alone? Thanks in advance