Sires producing faster progeny

[Lumtic]

Are there any sires that generally produce progeny faster them themselves?

Has this ever occured in 2 or more generations in recent times (last 15 years or so)?   
ie Sire produced a faster offspring who becomes a sire and produces yet faster offspring

[bostonborne]

Are there any sires that generally produce progeny faster them themselves?

Has this ever occured in 2 or more generations in recent times (last 15 years or so)?   
ie Sire produced a faster offspring who becomes a sire and produces yet faster offspring

Years ago a 1:50 mile was something special. Now it is slow. Does that answer your question dumbo?