Shuttle stallions have put us light years ahead of where we were in the late eighties when we use to get excited about unraced half brothers & second cousins to a good stallion in the US it has made us more picky and astute of where to send our mares. The plethora of choices of outstanding stallions and reasonable priced I think the biggest advances will be in the trotting ranks (look what Muscles Yankee has done already) if they don’t price themselves out of the market with some top of the range stallions now available. The interesting thing is that some work and some don’t like In The Pocket, Fake left, Falcon Seelster they just have that cross that clicked, Jenna’s Beach Boy spent 4 years out here never sires a top liner but sired winner and was in the top 10 of age group lists and even still is in the top 10 individual winner and stakes list in Australia