I have read the injector pole and can see socal,bigdipper,and extrude hone seam to lead. I would like to change my tips to 60% overs since I got the injectors out. I think I'm leaning towards big dipper,how do i get a hold of them and can i just send the tips out. and when referring to extrude hone i know it is a process but is there a actual shop called Extrude Honed .Where are they?