I think the media coverage is a load of bo***x to be honest. No idea where they get their figures from but if one bad apple is bought to light they tar the others with the same brush.
I know I will not risk my pension unless a colleague is getting the s**t kicked out of them and they put in an assistance call, then I MAY go over the 20mph circumstances taken into account.
I am also initial pursuit trained which whilst in a pursuit I can exceed the 20mph but I am constantly relaying the driving conditions to the duty manager and it his his/her decision as to whether the pursuit will continue.
As for Skippy scenario...... why did I disclose that

I take offical Muppet status for that one (even had the Sgt sat next to me).
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<((((((((((((((((◕‿◕) The Woozle woz ere (◕‿◕)))))))))))))))>
Black K4 Pointy named Zuky, OEM belly pan, OEM hugger, OEM cowl, R&G bungs, akrapovic system, tinted double bubble Fabbri screen, tail tidy, scottoiler, alarm, datatagged, lowered seat for short ass rider named Shell. 
RIP PC David Rathband sad day 29/2/2012