got out with new sand shark for a couple hours last night. im 3 whole cents richer now!! Unit seems good & im loving the nuttall diamond head scoop. its a bit heavy but is built rock solid. nice welds. i imagine it'll last a long time. good for long island sound substrate. im sure im not the 1st person to do this but i put a shoulder strap on unit & it was nice to put over my head & let MD hang on my back while digging deep targets. Strap came off my tool bag and has an 18 inch padded section