I currently have a factory installed transducer saver (HB 898 si/di) that is attached to my slidemaster jackplate. The “L” bracket appears to be tapped into the jackplate, not drilled thru. I am in the process of adding tho power poles (using the S22 braced brackets). The rear of the transducer saver is tapped into the outer black slidemaster plate, which will be removed to add the power pole adapter bracket. I am planning to use one of the other forward holes in the td saver L bracket to tap into the jackplate, as it appears that most rear hole in the L bracket lines up with slot in the PP bracket. I was wondering what size bolt and the thread size that you recommend to attach the L bracket?Or is there another method you use for an install with power poles and the HB transducer saver? If anyone has a similar setup (PP, slidemaster and transducer saver), could you please post or IM me a picture? Your Signature …