jQuery UI Tabs shrink,grow animation

I'm looking for a shrink/grow animation with the jQuery tabs relatively to the current tab

I don't really like the height: 'toggle' animation where the tab goes to height 0px first and then the height of the new tab.

when tab 1 has a height of 100px and the second a height of 120px I would like the tab to grow 20px.

I've contacted the creator of this plugin Klaus Hartl and he told me the following.:

Ayrton, unfortunately this has never been implemented for Tabs allbeit requested before. Due to massive workload I am not too involved in jQuery UI for quite some time already, but you might have luck asking for it on the jQuery forum, e.g. one or the other might have implemented that.

If I find the time I will look into it, sounds like fun actually...

--Klaus

If someone of you have an implementation, I would be pleased if you could share this.

Yours truthfully