I had over 13,000 hours before I first flew a twin! My transition to multi engine ops was from an Iroquois helicopter to a C130H Hercules. One engine to four. I managed to clock up over 1,000 hours on the Herc, 3,000 hours on the B707 and about 8,300 hours B747 time before I did my twin endorsement which was onto the B767. I now have around 5,900 hours on the B767. A very different path to most of you and the result of having had a career in the military then another one in an airline.
Regards,
BH.