This is a "quick" relay I have been doing to improve on the WCA events. It is pretty fun and for those who like the 2-7 relay they will probably enjoy this.
(no magics incorporated)
So here is the relay:
-3x3 BLD always first. Then order doesn't matter.
1. 2x2
2. 3x3
3. 4x4
4. 5x5...