The Williams family from Upper Wenallt farm in Wales has seen significant improvements in the genetic merit of their Welsh Mountain ewes since starting performance recording in 2010. This has led to increased milk production, early lamb growth rates, and overall flock profitability. They have achieved high Estimated Breeding Values (EBVs) in key areas like milkiness and eight-week growth rate, with ewes showing top performance in these traits contributing to increased lamb weights and scan weights per ewe. The family's focus on performance recording and breeding decisions, aimed at maximizing flock performance while preserving type and correctness, has been key to their success. They sell their rams and ewes at various weight ranges and through the Prohill sale at Aberystwyth, with some direct sales. Their strategy of selecting rams with positive traits like maternal ability and muscle and fat depth has led to a solid average in ram sales and a flock that is easy finishing and efficient to maintain.