{"product_id":"the-sewing-machine-hook-timing-skipped-stitch-diagnostic-system","title":"EXCLUSIVE ADD 1 The Sewing Machine Hook Timing \u0026 Skipped-Stitch Diagnostic System","description":"\u003cp\u003eA standalone specialist learning system for investigating skipped stitches and distinguishing setup, needle and material problems from symptoms that may indicate hook-timing or alignment faults. Includes model-specific research guidance, controlled observation workflows, case examples, symptom comparison tables and a technician-ready diagnostic worksheet.\u003c\/p\u003e\u003cp\u003eSeparate optional 20-page digital product. Owner-safe observations only; internal timing and geometry adjustments belong to qualified repair technicians. Not included in the main course.\u003c\/p\u003e","brand":"Planet eBooks LLC","offers":[{"title":"Default Title","offer_id":67695152824637,"sku":"PE-SEW-OB1-HOOK-2026","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/6128\/5437\/files\/sewing-hook-timing-premium-cover-2026_ae0f54ba-3742-4b43-b7cd-44d00f198bbe.png?v=1792029200","url":"https:\/\/planetebooks.co\/products\/the-sewing-machine-hook-timing-skipped-stitch-diagnostic-system","provider":"Planet eBooks","version":"1.0","type":"link"}