HMK also arranged for all Royal Rainmaking personnel to receive the refreshment trainings with knowledge and know-how of each technique counted since the beginning until now with additional new techniques and technologies in order to make certain that rainmaking is done effectively and precisely with even better result. On this occasion the technique of attacking warm cloud and super-cooled cloud simultaneously was invented by HMK which was experimented, tried and finally and successfully carried out throughout the entire missions fighting drought of 1999 in which this technique is carried on until now. HMK has named this new technique to be known as Super Sandwich Technique. Therefore, the Royal Rainmaking Technology was developed and now reemerged to consist of a four step: