Best strings/gauges for Eb/Drop C#

[MBR42]

I currently have super slinkies on my tele, which work great, but I want strings that are actually meant for Eb and Drop C# (Drop D a half step lower) tuning. I'd much prefer Ernie Ball, but any brand is okay, as long as they're pretty easy to find at your average guitar store.

[telex76]

During my SRV phase, I kept a strat in Eb tuning. It felt and played really good
with 11's.
I used Ernie Ball. Felt about the same as 10's in standard tuning.

[Rob DiStefano]

eb strings are low tension wound, hence the name 'slinky'. most other brands are higher tension wound. for me and eb tuning on a 25.5" scale neck, nothing less than 12-52 since my 'normal' strings are 11-50. there is absolutely no substitute for your personal testing. when it comes to guitar strings, bigger is always better in terms of tuning stability.