BIG Update!
Had the vet out Thursday. He did a thorough examination of Feronia, and said she’ll need hock injections “sometime this summer,” told me to keep doing what we’re doing (5-6 rides per week, one by a pro, trail riding, varied work), and … gave her the Green Light for small jumps!
On Saturday, in my weekly lesson with the jumpers trainer (who does lots of pole work with us), we JUMPED. And OMG, it Made. The. Mare’s. Day 
OK, it was tiny crossrail with trot poles set up in front. And we jumped it maybe 6 times. And we’ll max out, if we’re lucky, at 18 inch crossrails in an arena (she gets wayyyyyyy too hot cross-country for me.) But in the mare’s perfect world, she’d be sound and she’d be a Jumper, in the “Get Outta My Way, we’re Jumping!” mold.
The first time was pretty funny as she trotted in and suddenly pricked her ears, nearly stopped as if she was completely surprised that there was a JUMP there, and then launched herself and cleared the tiny crossrail by about 2 1/2 feet. Our subsequent efforts were less silly.
I never jumped her much, but she was much as I remember, eager, in tune, a bit hot, and very pleased with herself. The trainer says her form is fantastic (mine needs some work but is basically safe for the tiny stuff.)
We are both thrilled 