I have the short TC cleaning jag (1st two pics). Without drilling a concave hole in it, if I want a combo jag that will 'Minimally' increase the overall end-end rod length and at the same time give me polymer tip bullet loading capability, which of the last two pics should I choose? Of the last two, the short one (TC) says Cleaning and Seating but I've never seen a knurling (for cleaning ?) in place of jagged ridges like pics 1&2 no. And the longest (last pic, Knight) - is that a 2 piece deal? if so I'd increase total rod length by probably an inch. The ad doesn't say and hold time for phone calls adding up. Thanks for any input if you have time!