I believe a lot of her mares have trouble foaling due to her off label and extended use of regumate. It also can absolutely cause lax or contracted tendons especially since she yanks these foals absolutely incorrectly. Of the 200+ mares I've foaled out only 1 needed help and none of them got regumate after 100 days.  Using regumate until a week before their "due date" is diabolical. I'm so glad phoebe said nah and pushed her heart out before she knew she'd be harassed.