Further to the above; if the aircraft has recently been overhauled,on the first t/off, to keep the slots locked ,until one has completed some stalling,and checked that the slots pop-out at the same speed,evenly smoothly ,and retract similarly...
Likewise,during sideslips and x-wind landings,either,or both slats may pop-out,as there is a `stagger `of appx.15* between the wings,so relative airflow is different in such conditions...
The Tiger Club (as was) had 3 Tigers used fo aerobatics and racing and I`m sure the slats were all removed from them,possibly `accidently`....! I`m sure `Pobjoy ` will correct me.....!