Hello JMB,
How are you? have not heard from you in a while......
Anyway, I used this setting for my GP3300 this weekend, worked really really good!!
Step 1 : 2500mAh 7A - Mega Flex off
Step 2 : 2550mAh 0.3 - Mega Flex off
Step 3 : 3950mAh 4A
Temperature : 47°
Delta Peak : 3mV