I think you're gonna like the Stardusts, however, I've found that some flavours just do
not deliver the TH or vapour levels well on the ego with the SD's. It's easy to dump the
juice back into the bottle and refill with another to try though.
The LR's do offer better TH and vapour on an ego battery that is for sure.
The 3 voltage 1000(or 900) mah ego battery works best for me.
It's always on the highest setting....4.5 volt, I think.
Two of my SR Stardusts are still going strong after well over a month.
A simple rinse with warm water and a little dry burning to dry the wick and get the coil
glowing red again makes them vape better than ever.
Just blow on the coil lightly, without the drip tip on, while firing at 3 or 4 second
intervals, pause a little longer between firings.
It's easy to see when the coil is clean as the whole boot glows red.
Refill, let the wicks get wet, do a couple dry pulls, and be amazed!

Edit: When topping up fill to the top of the wick, and don't run them too low.
If the juice isn't touching the wick when you vape it'll get dry, not good.
The natural tipping motion when you vape should take care of this, if there is
enough juice in the SD.