Re: Walk away split
Scratch a piece out of the comb, right down to the foundation but leave the foundation. Do it so there's eggs or just hatched larvae in the row of cells straight above the bit you scratched.
The bees will normally build cells from that row because they have room to build the cells straight down & provided it's a strong motivated colony with food on hand, they will be good cells.
44 years, been commercial, outfits up to 4000 hives, now 120 hives and 200 nucs as a hobby, selling bees. T (mostly).