The way I stopped my Ovation guitar from sliding, was to sell the guitar. 😀
Faith Mercury, Parlour Guitar. Faith Venus, O.M, High Gloss, with cutaway. Burny, Black Les Paul Standard, Joe Perry model. Sigma 000M-15 All Mahogany Sigma 000M-1 Solid Sitka Spruce top, Mahogany back and sides Seagull Coastline Folk Guitar. Fender MIM Standard Stratocaster, in Tobacco Sunburst.