I bought a 10 year old haflinger to use with a cart.I have be using a sled to learn how to drive she does great.she has not be worked for 1 year how for should I start out driven her 5 miles,or can I go farther.It is a pioneer cart.
I would think of it like you running a marathon. Would you want to start out with a five mile walk when you've only been walking maybe a 1/2 mile? I don't know how far you have driven her but start slow and work up. Add maybe a mile or two every week.