Ben,
All of us in this forum have better engineering skills then the Garmin pole guy.
2 redneck engineering options that I’ve done because I couldn’t find an aftermarket pole at the time.
1. Basic $10 dollar mod to the joke pole. Get a bullseye level, tape, and 4 eyebolt screws(3” to 6”). Get creative on length of screws.
Step 1. Glue the bullseye level on the Garmin W base.
Step 2. Stop the pole wobble. The pole wobbles all over because there is a 1/4 gap between the poles and the Garmin W base. I just unscrewed the poles and wrapped masking tape 7-8 times around the the top of the pole that the Garmin W goes on top of. Again get creative to stop the pole wiggle. Simple masking tape solved it for me.
Step 3. Screw the eyebolts in the 4 predrilled holes that are already on that sweet Garmin W base. Level if needed on the ice.
Step 4. Celebrate and apply for the Garmin pole design team.
2. A DIY pole. You can’t do worse then the joke pole so get creative. The summit mount is just a telescopic pole with a tripod base.
I just had one of those smaller telescoping painter poles in the garage. I mounted the transducer to the pole. I had an old camera tripod that the painter pole went through. I glued a bullseye level on top of the pole. Made a free redneck livescope pole that actually worked great.
My wonderful daughter somehow found a summit pole mount for me. Only mod I made was to glue a bullseye level on the top of the pole.