You are udderly despicable, Ken. I am repelled.
That second Heart clip (the first one is blocked in Germany for IP reasons) gives a glimpse of what a great band they were. And the way the Wilson sisters looked (while certainly owing a debt to Fleetwood Mac Rumours era) has become a blueprint for how hard rock/heavy metal bands with female vocals such as Nightwish, Within Temptation and Epica present themselves today.
The little bass runs dring "Barracuda" - like at 6.14 those five notes - are soooooo archtypical T-Birdish in sound, not at all like a P Bass woukd sound doing the same run. I can hear the maho and the neck thru construction.
Very musical.