You may have noticed a small flex at the base during use. In order for BootySprout to fold up, the design requires a locking pin. This is the spring loaded pin you pull out in order to fold open or closed the base. This pin fits into a hole on the base.
The pin cannot fit perfectly flush inside the hole, so when using BootySprout the base will flex around the space in this hole.
It is completely normal and a safe operation as the locking pin can withstand 30,000+ pounds!
BootySprout has been tested to 1000 lbs of resistance, with a safe use rating of 450 lbs. It is very sturdy!