Regarding re-fuel while smuggling. Seems that there are some systems that don't spawn pirates or security, I just make sure to fully refuel in those, and then have enough fuel capacity to make the rest of the jumps quickly. Has kept me mostly out of trouble so far 
Edit, second tip - don't fill up full of cargo, but leave maybe 5 tonnes empty. Then manually set the jump range to full cargo range. This significantly reduces fuel consumption compared to jumping near max range for the whole journey.
Edit 2: Congrats on making Elite!
Edit, second tip - don't fill up full of cargo, but leave maybe 5 tonnes empty. Then manually set the jump range to full cargo range. This significantly reduces fuel consumption compared to jumping near max range for the whole journey.
Edit 2: Congrats on making Elite!
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