Gooseneck? I think you mean the U-shaped block hanger (bail) off a Hobie boom which should be ok fastened around the dolphin striker. I've made several poles and they all worked ok. USE GOOD LINE not some thin stretchy crap.
Poles are a lot better than dumping single-handed, then waiting for a passing jetski or well-meaning powerboater who may or may not not hole you.
Or the Coasties who are happy to tow your boat back to shore at high speed- upside down and turtled.