Hi All
Hmm...

...Same goes for me here roughly speaking...I also need to broaden my bio exploration horizons!
The thing is though I'm slightly fascinated with the concept of gaining credits through multiple stacked trade missions, just to see how extreme I can get these missions to pay out.

...

... so it kinda takes up some considerable time once my 'OCD' on this point so to speak kicks in!

For example, I'm in the Rhea system presently selling off my mined Gold, Platinum, Palladium Bromellite and that luverly metal... Osmium!...which incidentally pays out substantial amounts for some of these trade missions. I've just sold off a fairly small batch of these commodities for 80 million credits within approximately the last hour, and it's still going strong at the moment. Plus when I get attacked by the npc pirates too and from my carrier that keeps topping the income up by roughly one million on each individual npc pirate I destroy.
Okay, it's not as great an income as some of those first discovered bio's you can find, but as it goes gameplay wise it's keeping that variation in gameplay at a personal level I find pretty much on the fun side, with Mining, Combat and Mission elements all rolled into one over a reasonably short (by Elite standards!) timeframe.
I also (as you all may have noticed) browse the forums usually at the same time as I'm playing, which while I'm docked at a station allows those trade missions to be re-displayed periodically for the stacking process.
I visited a couple of Titan system / spots yesterday, only managed to snag
one Titan Drive component before boredom kicked in

...still, I managed to also top up some engineer materials and other stuff I'd used a few months ago, so the time wasn't wasted.

Edit.. Total spare Titan Drive components in my carrier's hold presently is 3!
Ah!...that's interesting to know

, I see various posts describing the virtues of Prismatic shields but I wasn't aware they were very slow to re-charge.
Jack