TI Jazz Flats - which gauge for a Precision ?

Strung 'em up today. Great strings. They stay in tune, even new. Feel is good to me, tension is fine. I miss the vibrato I can get with rounds but I have other basses for that. Plugged into a couple of amps to check out how the strings sound:

Yorkville xs800 Bassmaster with 4x10 Mesa Powerhouse.
800w rms, this old amp is like a big block muscle car. Super punchy low end with these strings. The sound most players will want out of an old precision. Perfect for a loud gig where the bass drives everything. Love the strings with this amp.

Vintage Ampeg B15
Pleasant middle of the road sound. Good for a light weight gig where no one gets offended. I usually use this amp for upright gigs so does not really matter.

Also have a GK amp to try it with one day but every bass I own sounds good with that amp. I'm sure it will not disappoint. :)