Efficient delivery of multi-site pacing

A method of cardiac pacing employing a pacing device comprising a set of electrodes including first and second left ventricular electrodes spatially separated from one another and a right ventricular electrode, all coupled to an implantable pulse generator configurable in a first pacing mode to deliver a first LV pacing pulse to the first left ventricular electrode, thereafter deliver a second LV pacing pulse to the second left ventricular electrode and thereafter deliver an RV pacing pulse to the right ventricular electrode and also configurable in a second pacing mode to deliver the first and second LV pacing pulses prior to the RV pacing pulse;

• the method comprising:
• the pulse generator delivering a first pacing pulse to the first left ventricular electrode, thereafter delivering a second pacing pulse to the second left ventricular electrode and thereafter delivering a third pacing pulse to the right ventricular electrode;
• the pulse generator generating a first recharging current recharging a first coupling capacitor over a first recharge time period in response to the first pacing pulse;
• the pulse generator generating a second recharging current recharging a second coupling capacitor over a second recharge time period in response to the second pacing pulse;
• and
• wherein the pulse generator generates the first and second recharging currents in an order dependent upon:
• being configured in the first pacing mode, left ventricle to right ventricle pacing delay (V-V pace delay) and delay between the first and second pacing pulses (multiple point LV delay).