I have a z19 nitro, currently running a helix 9 g2n with factory bracket directly into the bow panel beside the trim switches. Seems solid enough to me, ran it for two season haven’t had any issues. Looks like this plastic material has some good thickness to it, don’t recall off hand now as it’s been in storage since last year. Anyways I’m planning on adding a helix 10 g3n to bow as well and was looking at the precision sonar over under mount, question is do I need the bow replacement panel that replaces the factory panel or is the factory panel sufficient? I find it hard to imagine screws ripping through that plastic but wondered what everyone had to say.