How to draw cusp with shape editor?

[shaydon0]

Hello -

I'm actually not new to Xara but I've never been a heavy user - this has always niggled a bit and I do wonder if I'm missing something obvious...

I know how to use the S and Z keys to switch between making smooth and cusp points as I draw a curve. But is there any way to prevent Xara from aligning the handles even through a cusp when I place the next point - so that my 'corner' gets rounded and I have to go back and edit it back into a corner? Hopefully the image below makes it clearer what I mean.

I always naïvely hope since I've told Xara I want a cusp it will leave the handles alone!

Any help gratefully appreciated.