Until now we have had no way of knowing what the public really think of the party leaders performance. Instead, the members of the commentariat simply form their insider consensus, unsupported by anything other than their own shared metropolitan prejudices.

For example, the current consensus among the pundits is that it’s not a good idea for Cameron to get angry with Brown. “Too much like Flashman” think the hacks. But lots of voters are angry as hell at the PM and want to see him get a great big slap in the face (hence the popularity in Dan Hannan’s viral video in which he gave the PM the full hairdryer treatment).

Are the pundits right? What do swing voters actually think? At the moment that knowledge isn’t available to anyone unless they have pots of cash to spend. In the U.S. Frank Luntz charges corporate clients a small fortune to run dial groups (as seen on Newsnight) which capture exactly how voters feel about what politicians are saying. If you have the money, the effect of every word and weird facial expression can be measured precisely.

Now that technology is about to be democratised… it is time to cut out Sir Michael White and find out what voters actually think.  Let the crowd-sourced experiment begin – click here or on the button above and you will be able to record your responses blow-by-blow to today’s PMQs clash.  We’ll have the results back later…