Rita Carper So-wards, Future Advances in Missouri, 49 Mo. L. Rev. 103, 114 n.80 (1984). But [a]dvances in excess of the face amount of the mortgage should be unsecured only to the extent of the surplus. Section 443,055.2 provides that “the total amount ... may decrease or increase.” This indicates that surplus advances should become secured as the mortgage is paid down, with priority dating back to the date of the mortgage. The "total amount” refers to the balance at any given time, rather than to an absolute maximum determined as of the date of the mortgage. Id. atl!5n.83. 10 . Grisham never challenged the cross-collat-eralization provision, and such provisions are routinely enforced in Missouri. See Russell v. Empire Storage & Ice Co., 332 Mo. 707, 59 S.W.2d 1061, 1070 (1933) (<HOLDING>),’ In re Cook, 504 B.R. 496, 503 (Bankr. App.
holding that such provisions are valid holding that specific statutory provisions take priority over general statutory provisions holding that the hearing provisions of the ina supersede the provisions of the apa holding such a provision waiving alimony valid holding that the substantive provisions and reporting requirements of an unclaimed property law are valid as applied to national banks