OK - I have 4 device slots (wish I had more). I seem to do best with a hypo and shield charge, and ya gotta have a tribble (don't you?). So that only leaves 1 slot. If you are fighting Borg, that is taken by a remodulator. Do people use the power cells? I don't notice "weapons malfunction" much (PVP only?). I like to use my final spot for Ophidian Cane or Shard of Possibilities. Is there some better configuration? You don't get to swap them around much when you are being hounded by baddies, so I need a good set-up I can just leave there.
The ophidian cane, the shard of possibilities, the thing that puts a ring around you and turns you ghostly blue (I forget it's name, the posts look like transport enhancers) and a health tribble. Though when fighting the Borg missions, I gave the ring enhancer thingy to my second officer and put a remodulator in.
Being an Engineer, I'm also well equipped with seeker and service drones, turrets and mortars. With doffs to get extra ones of each of them in. While everyone is busy shooting at all this random crap I've spawned, my boffs go in and shoot them to pieces.
Obviously this is only pve. I don't pvp.
A Romulan Strike Team, Missing Farmers and an ancient base on a Klingon Border world. But what connects them? Find out in my First Foundary mission: 'The Jeroan Farmer Escapade'
Regardless of anything else, I always use Large Hypos on the ground. If using a tac, I also use Large Power Cells, if needed, a remodulator, and one spot for whatever I feel I need. Usually a pet, but sometimes another healing item.
One thing I LOVE, are Personal Combat Modules, they are awesome pieces of work. And Team Combat Modules, can save some serious skin if the person using them is good with them (goes double for a science specced into Medic). The health and shields booster, for yourself or your whole team can act as a 'full cure' across the board.
Tribbles are way over rated, not really necessary since the bonuses they give is so small. I use large hypo, shard of possiblities, immunosupport nanite injector and either a collective static grenade or shield charge depending on the character during STFs. If you don't have an integral remodualtor use the spot for the shield charge or static grenade for it a remodualtor. Or just farm 60 EDC and but mk X ground set by doing elite space before you do ground, much easier that way once you have integral remodualtor.
1. large hypo (everyone should have no matter what.. even sci's)
2. gambling device --> if you don't have omega or maco set you can swap for a remodulator after you use it and keep the buff
4.shard of possibilities
the stats of the gambling device totally destroy any tribble buffs.
I'm carrying Shard of Possibilities, Remodulator(if needed, otherwise Triolic Pattern Enhancer), Fleet Tribble, and Ophidian Cane.
On my 3rd character I use Remodulator, Fleet Tribble, and two placeholder slots.
Edit: To explain the first sentence: I rarely remember to use any of it outside the Remodulator.
Infinite possibilities have implications that could not be completely understood if you turned this entire universe into a giant supercomputer.