there arnt really risks unless u fuk it up which with spirit aint gonna happen and your not gonna get caught so theres wayyyyyy more benifits then risks i hope i helped
Well even if you do screw up there is always the option of putting it into DFU mode and restarting the process. So basically there is no way you can mess it up.
The rsik is thatthere might be an error while jailbreaking of downloading somthing and it might freeze up. Then you have to restore and re-jailbreak it. But if you want to jailbreak just click the link in my sig!