The top line is that it is a winning strategy overall

If you sell your bitcoins today, you are likely set to lose tomorrow (by letting go a good chance to get rich really quick). On the other hand, if you buy bitcoins now, you will take an opportunity and use the FUD behind the BU split against BU itself and to your advantage by buying low. If the old Bitcoin fails, you will have the new Bitcoin in absolutely the same amount, if the new one fails, you will have the old one which thereby proves its strength, might and power. So getting rid of bitcoins would be a losing strategy while acquiring more is seemingly a winning one whatever way the events are going to unfold in the future. Just keep your bitcoins in your personal wallet so that no one could steal this opportunity from you