I already own the silistretcher 2 and size Doctor. No matter what I do with the size doctor I get blisters so I’ve ultimately stopped. I use the silistretcher daily for hanging and an ads, but I go through one durasleeve a week (you’ve sent me replacements which I appreciate). I have a generic stealth stretcher which I haven’t used since I got the silistretcher but I also don’t have the extended piece for it. I was just hoping there would be a extender add on for the silistretcher 2 since it’s the most comfortable for me.