Anyhow, it is vitally important to have the ability to pull more than +30 deg & -15 deg in pitch, oh and 67 deg in roll (particularly for a barrel roll), oh yes and +2.5g/-1g (clean). It is also a requisite to be able to stall it, especially if you wish to enter a spin, plus a myriad of other exceptional manoeuvres that are utilised every day........