This winter I told myself I was going to start doing more stuff for myself versus having to run up to a local store and having them do it. I have 6 reels that I have put mono backing on and are ready for the top, main line. 4 will be FC and the other 2 braid. What knot do you recommend to connect the mono backing to the FC or braid?

If you did this right, i.e. you never run into the backing, a uni to uni knot is all you need, easy to tie, and pretty small knot. If you have any doubts, a dab of super glue on the knot will add some strength.  Make sure to keep  some Tension on the line as your spooling it on the reel.

I just do an uni. You'll never reach the backing and if you do something is wrong. Same as how I just do a couple overhand "knots" to tie it to the spool.

Double Uni is what I use - whether the main line is Braid, Mono or Hybrid.

I use a double uni knot also.

Wouldn't a double uni be a bit big and create a noticeable bump on the spool?

I just put them together and do a double wrap granny knot then cover it with some black tape.  I have been doing this method for many years with no problems.

4 hours ago, michael1 said:

Wouldn't a double uni be a bit big and create a noticeable bump on the spool?

Nope...just do 5 wraps per side..

I usually do an albright.  They are just easier for me than an Uni.

13 hours ago, michael1 said:

What knot do you recommend to connect the mono backing to the FC or braid?

I use a uni to uni knot and it works great.

Uni to Uni for me also. Someone posted the lefty kreh knot a couple week/months ago. That was the easiest line to line knot I ever tied. Used it all the time when I used tie leaders. Another option.

 

 

 

1 hour ago, Bass Junke said:

Uni to Uni for me also. Someone posted the lefty kreh knot a couple week/months ago. That was the easiest line to line knot I ever tied. Used it all the time when I used tie leaders. Another option.

 

 

 

This is a good leader knot but won’t work for line to line

That is exactly why I just logged on. Just realized you need an end to tie that knot. Rusty, haven't tied that in a while.

Alberto, it is fast to tie and I can't feel it under my thumb. Uni to uni is big enough that I notice it. 

Alberto knot. Been down to my backing twice while UL fishing and had no problems.