ZALT PC1/PC2e is an essential part of 7/7=1 which Shell launched nearly 6 years ago. Obviously it took time for the OEMs to put procedures in place and to get higher performance machines in place, but such an important part of 7/7=1 was high priority and helped drive many fleet renewals around the world with EC225, S-92, AW139. EC155, EC135 etc.
