i have tryed these over the channel,good up to 300mls,after that you want a special bird,and different prep for channel racing,only my opinion,but back to sprint races these lambrects of graham mathews have won every race point inland this year,and topped the fed,the last young bird race this year we took the first seven in the club and all seven in top 20 in the fed,we also have the van hoeckes from mickey collins these have won hundreds of fed cards in the derby burton fed,but grahams lambrects are faster,hope this you,ken