Once you enter the portal, do you forfeit your scholarship and have to ask to get it back if you decide not to transfer? Or do you have your current scholarship as your backup in case you do not get picked up?
You should lose the scholarship immediately upon entering the portal. That way, if you do not go somewhere else, you are stuck taking a lower offer or risk losing your spot with the current school. Needs to be some risk associated with this for the athlete...if it is all gain, no risk, then why not put your name out there every year just to see if someone bites.