I am no halachik decisor, and my opinion is just that. There is an old halachik issue about if (old-style) conservative gerus works. Rav Moshe Feinstein considered the conversion valid, others disagreed.
So we are down to a halachik question that is still open, to the best of my knowledge. Why run with one side of the issue when a simple five minute gerus will put an end to all speculation??