Is the inflated Flypal foot rest stable?
Less inflating can increase Flypal stability.
Do not over-inflate as over-inflation will decrease the stability of the cushion. 90% is the ideal inflation level. Use the “Grab Test” to identify the ideal inflation level. After inflating if you can still take hold of one corner of the cushion in one hand this means that Flypal is inflated ideally. If the cushion is too tight to hold then this means the Flypal is over-inflated.
To increase stability of Flypal, you can put a cardboard preferably 24 cm x 44cm (same size as the bottom of the footrest) into the dust cover. This will make the footrest more stable. Preventing it from moving side to side.