buutenks
You're going down Freeza.
Here a speed feat:http://img55.imageshack.us/img55/7425/db231032mh.gif
http://img55.imageshack.us/img55/6180/db231042ou.gif
http://img55.imageshack.us/img55/9938/db231057pv.gif
Vegeta and the others could sense ginyu's ki and they were in those ships that were moving atleast with the speed of light,but Vegeta after he got stronger,faster and could sense better he couldn't sense final form Freeza moving and couldn't sense his attacks,so that proves that the z-fighters can sense ships that fly at light speed or above and it shows that Freeza in his final forma can move FTL. And the z-fighters couldn't sense Perfect Cell and ssj1 Goku moving,so that shows that they were moving FTL.
And about the part with Piccolo not being able to catch ssj Gotenks,well we don't know how much time it took ssj Gotenks to go around the planet and he took a nap so he probably had a low ki when he took that nap,so that's why Piccolo could find him and the z-fighters move to small places FTL,when Perfect Cell was fighting Goku they were moving to small places very fast that's why Piccolo,Vegeta,Trunks,Krillin,Tien and Yamch couldn't sense them but if they would fly I bet that Piccolo,Vegeta,Trunks,Yamcha,Krillin and Tien could have sensed them.So the z-fighters move to small places FTL,but if they fly to long distances they fly slower.And Vegeta,Piccolo etc could sense Freeza's ship that was hedding to earth and that ship was flying faster then light,but they could sense Perfect Cell and ssj Goku even though they had very big kis.
And I got another speed feat,when Raditz traveled in one or two seconds 4880 km.
And for the Raditz speed:http://img157.imageshack.us/img157/7781/reschap197i86qs.jpg
http://img157.imageshack.us/img157/688/reschap197i93lc.jpg
http://img157.imageshack.us/img157/20/reschap197i105ud.jpg
Okay it wasn't one or two seconds,more like 10 but still that's very fast.