I am looking into trying out some new strings for drop d playing. I regularly use power slinkys for standard. I am new to dropping down to d. Just some suggestions on some strings to check out. thanks. my guitar is in my sig.
Ibanez Rg 321mh
Squier Classic Vibe 1970s Precision Bass
Guitar Rig 5
Presonus Audiobox
Behringer Truth B2030A
If you like the power slinkys, then I'd say just stick with them. That's what I tend to use for standard/drop D.
I personally can't stand Ernie Balls, they corrode very quickly for me while a set of D'Addarios last several gigs. Everyone has different skin chemistry though.

Try a set of GHS Boomers.