I see that this aircraft also has the small rudder installation.
As a pilot who is quite experienced in flying various small aircraft but inexperienced in aerobatics and any recency for spins, I would recommend that anyone not very familiar with aerobatics avoid doing so in an aircraft unforgiving of errors.
I have a bit of Slingsby time and intend to get more but don't intend to get past doing stalls with an instructor in the machine as I know that I don't have the experience to accurately get things right every time in a disorienting situation.