So this lift has completely replaced my footstool; after four weeks or so I love it. The suction cups don't slip when I'm playing; however, when I put the guitar back on the stand, where it leans back, sometimes after 5 minutes or so the top suction cup(s) will become unstuck. Has anyone else experienced this and if so, what to you do? For the moment I've taken to laying the guitar down on my bed with the lift attached. This solves the problem.
Paul Weaver spruce 2014