I used to fly for a company operating:
Ec120
Bell 206 L
Bell 206 L I
Bell 206 L III
Bell 407
BO 105 DB4
BO 105 CBS4
BO 105 CBS5
At that time I was trying to stay current on H269 and R44 as well. You really had to concentrate during start-up not mixing up Bendix vs Ceco FCU. On busy days that was quite a challange.