I need help trying to figure out charge port placement (bottom of hilt or top?) and if the fluted extension tubes can be threaded well for the port or if it is just easier to go with the external nut to hold the port in place? I will be using a prizm 4 and internal chassis system. I have attached a few photos for the options i am looking at. As always any help is greatly appreciated. SaberBuilder_render-charge port.jpgSaberBuilder_render-w charge port.jpgSaberBuilder_render-first build alternate.jpg