I was having a hard time hanging 5 lbs with the Silistretcher because part of the sleeve would come out, creating an inward bubble. I PM'd Lighting and he gave me the following advice that worked great:
Try retracting the piston 3 full turns then put your penis inside the SiliStretcher and SiliSleev and then do another full turn.
Try retracting the piston 3 full turns then put your penis inside the SiliStretcher and SiliSleev and then do another full turn.