Should i do my backhandspring on the gr? help!?

if you did a standing back handspring by yourself on the spring floor, you could do it anywhere by yourself because you weren't actually using the spring. i wouldn't do it without a spotter if i were you because you might not have enough height to get over easy enough and you might hurt yourself. you could do it with someone who knows how to spot properly, don't do it with someone who doesn't know how to spot because if you were to fall, you would get hurt because they wouldn't have you right.