Remote and incidental contingencies.
(vi) Remote and incidental contingencies. An interest does not fail to qualify as a regular interest solely because the amount or timing of payments of principal or interest (or other similar amounts) with respect to the interest is subject to a contingency if there is only a remote likelihood that the contingency will occur. For example, an interest could qualify as a regular interest even though full payment of principal and interest on that interest is contingent upon the absence of significant cash flow shortfalls due to the operation of the Soldiers and Sailors Civil Relief Act, 50 U.S.C. app. 526 (1988).