However: one step further - compared with MiG-19> 
  
There was one confirmed but hushed-over F-100 vs. MiG-19 encounter, in the early 1960s over Czechoslovakia. A USAFE F-100 from the 50th TFW accidentally crossed the border, and was forced down by two Czech MiG-19s (actually, S.105s) from Plzen-Line, and landed at that same airfield. Knowing how close Line is to the former Iron Curtain, the fact that this Hun could not outmaneuver and/or outrun those Farmers surely confirms the sluggishness and lack of responsiveness.  
  
While the F-100 indeed was a further development of the F-86, the only American aircraft to actually put the lessons of the Korean War to use was the F-104. The Hun offered improvements in range and firepower, but none whatsoever in handling and hardly any in performance - certainly not to the level as was desired by the pilots.  
  
Sadly for the USAF, when they got involved in Vietnam they simply did not have a better 'fighter' than the F-100 in their inventory. The 104 was already handed over to the Guards (both for range and it's crash rate), the 101 always was unflyable as a fighter because of it's backflip-tendency, the 102 and 106 were GCI-controlled interceptors in the strictest IA-PVO meaning of the word, and the 105 was a dedicated bomber. It wasn't until the F-4 appeared that the USAF got a real fighter again - all the Century-series aircraft were "excuses" for fighters. From reasonable to hmmm, but excuses nevertheless. 
  
The only task in which the F-100 was really successful, was CAS. 
  
Obviously, the MiG-19 had it's limitations, it's range being a pretty important one (although there was a number of trials with air-to-air refuelling with the MiG-19). But it was definately useful in it's intended role: that of a fighter. And while the MiG-19PM was a totally hopeless missileer, the handful of MiG-19PM(L?) with the PM's radar and Atolls was a lot closer to a real fighter like the F-8C/D than the Hun ever was.  
  
Funny is that the F-100 and MiG-19 had a number of similar experiments conducted on them. Both were used for ZELL trials, and one of the MiG-19s refuelling probes tested was built almost exactly like the underwing-probe on the Hun.