Pat, I switched to the Airflo II lines in a type 3 and 6 and really like them..... Not sure the difference between these and your older line...
https://airflousa.com/airflo-sixth-sense-2-sinking-fly-lines-usa.html
There is quite a bit of confusion on using Lithium batteries for starting motors as the alternators in some cases are not designed to charge the batteries depending on the HP .... I got so confused when i did mine, that i just use a lead acid for starting and the lithium for the trolling .....