Perhaps more important than involving administrative personnel in on-site inspections was the increased use of material incentives, such as paid vacations, special bonuses, honorific titles, and monetary rewards. In fact, the Ch'ŏngsan-ni Method appeared to accommodate almost any expedient to spur production. The method, subsequently, was undercut by heavy-handed efforts to increase farm production and amalgamate farms into ever-larger units. Actual improvement in the agricultural sector began with the adoption of the subteam contract system as a means of increasing peasant productivity by adjusting individual incentives to those of the immediate, small working group. Thus the increasing scale of collective farms was somewhat offset by the reduction in the size of the working unit. "On-the-spot guidance" by high government functionaries, however, continued in the early 1990s, as exemplified by Kim Il-sung's visits to such places as the Wangjaesan Cooperative Farm in Onsŏng County and the Kyŏngsŏn Branch Experimental Farm of the Academy of Agricultural Sciences between August 20 and 30, 1991. Kim Jong-il carried on the tradition, despite having refused to do so before, and even expanded it to the Korean People's Army. Today, Kim Jong-un continues the practices of the method.