sebastiantombs
Known around here
As far as "pass thru" that will depend on the crimper I've been doing RJ connectors since the 70's so I'm a "dead front" guy, but my crimper is made for dead front connectors. You will probably find it easier to use a "pass thru" connector and a crimper to match. Klein is good and usually available at Lowes and Home Depot. By using a pass thru you'll be able to verify the color coding of the cable and maintain the correct twists on each pair a lot easier than with a dead front.