Years ago was in a league that had 12 teams and did a snake draft, but every 2 rounds the order switched. So round 1 was typical 1 to 12 and round 2 was 12 to 1. Then round 3 it went something like 9,5,8,6,11,10,1,3,12,4,2,7 and then in reverse round 4. Then different again in rounds 5-6, etc.
Anyone else ever seen something like this? Was talking with some friends who were in that league and we were wondering if it was something others had seen as I couldn't find anything on it.