I have 2 of the Battle II 2500’s and run 30lb braid on them. It’s roughly the same diameter as 12-15lb mono and the heavier braid helps against wind knots. I run 20lb fluoro or mono leaders with it. Works pretty well. I think you’ll find most on here are running something similar to that. I might be a little heavy on my braid for that reel, but the benefits already listed are worth it. You’d be just fine with your 3000 set up this way.

 

I have 2 of the Battle II 2500’s and run 30lb braid on them. It’s roughly the same diameter as 12-15lb mono and the heavier braid helps against wind knots. I run 20lb fluoro or mono leaders with it. Works pretty well. I think you’ll find most on here are running something similar to that. I might be a little heavy on my braid for that reel, but the benefits already listed are worth it. You’d be just fine with your 3000 set up this way.

The heavier braid (read thicker dia) also helps with the line digging into itself with tight drags and big fish.

 

I have a dozen Penn Battle II 3000s. I use 30 pound braid for bottom half of the spool. Then top half with 17-20 pound mono. We fish the jetties often. We have a landed some giants just take your time.

 

I like 12lb mono or 20-30 lb braid, we've got a couple 3000's and seems to be a good balance. 12lb if kept fresh is perfect.

 

Got the Penn Battle and use 30lb braid. The power pro std brand. Works fantastic. Just switched to braid a year ago and wish I had 15yrs ago. I use a 14lb mono leader about 3ft long. Use a uni-unit knot to tie braid to mono. Never had one slip yet.
The little knot goes thru the line guides great and does not affect casting.
Go with the braid.

 

I'll second the double uni knot to tie braid to mono/fluoro. I've never had a problem with it, it's an easy knot to tie and does go thru eyes well. I'm also phasing out all rods with micro guides too though.

 

^yep, I do that on pretty much everything I run. I like the loop knot retention on the flouro and start with 6' of it and trim it back as it gets chewed up. Never had a problem with the knot causing issues.