Also, the DC10 could carry much more volume than the TriStar 500... and had greater range.
I flew almost all of the (BA and Caledonian) variants; except the -250; however, the -200/500s were my personal favourites. I eventually moved onto the B747 Classic; which was like going back into the dark-ages... especially when flying the -100. Those Pratt & Witney motors were very temperamental.
As for the TriStar... a very nice aeroplane.
Cue 411A...
TCF