Linda,
Just a few questions to help put your program in perspective:
How many days per week do you do these intervals?
Do you do any sort of "background mileage" in between training days?
Are these gallop bursts "all out"?
What is your mare's typical recovery time in a vet check?
Are you training principally for 100s or 50s or both?
Thanks for sharing your program! Looking forward to Tom's reply...
Regards
Bobbie Lieberman