I have just replaced all my AGM batteries with lithium and have noticed that once on plane the back gets real light and wants to slid to the side. My question is should I raise or lower my jack plate since I have removed over 100 lbs from the boat. She jumps on plane without any issues.

I'm running a Merc 150 with a 21 Tempest Plus about 3.5 below the pad.

Thanks for your input in advance.