It won't grip the bare spool mate and can spin on the spool.

I normally use some double sided tape around the spool first. Some people use insulation tape and some use a small amount of mono on first.

Saragosa 20000 spinning reel Kaveman.

The reason I was given is that braid has minimal if any stretch & being such a relatively small dia tends to wind on as if it were a bush without a key or anything to prevent it from turning or locking in place when drag is applied.

Right  looks like there is a reason why I have put mono on all these yrs.

Alan,

I follow this formula.
Old ceramic spools, mono only, or large mono backing, firmly packed. Crushing and shattering of spool on a large fish was a common occurrence.

Chrome spools, mono backing as above.
Braid crushes chrome plating, so mono is a cushion.

Modern spools are well made alloy generally, no crushing or direct abrasion issues.

Spools that have a knob point braid can be tied directly to spool no slippage.

Spools without a knob point require mono to gain grip, including the right knot, and spooling techniques.

With all spools, all spools require the regular removal of line to clean and maintain.

I recommend on all respooling that the spool is greased for annual corrosion prevention.

There's probably more I could pas on but that's the basics for use, longevity of tools and assuring your kit will stand up.

M

When 1st started with braid, I did everything wrong..
No backing, tension too loose.
Many thanks to so much learnt from Phil Baker (who is unfortunately locked down in Britain)

I orginally used a few layers of mono...
 Then found out crushing was not an issue on my spools, so went to insulation tape.. not the cheap stuff, expensive 3M.
 If that made a difference???
Anyway even then found a  tiny little corrosion...
Now use 3 layer of 3M tape, cant rem what called, but stretches way beyond 2x, and sort of 'welds' back onto its self. Its used where cabling in extreme conditions and long term (decades) is required  eg communication towers at high  altitudes that go from very high summer temps to well below freezing.

Maybe over kill, but thats what have on the shelf, got used, and fully seals, no adhesives to fail, no moisture.

Had a tiny leak on the bighorn power steering a while back..
 Wrapped that around real tight, 4 layers..held up till got to replacing the hose...same for old  cracked vaccuum hoses leaking, till get replaced.
I think both would have lasted months or yrs beyond when the hoses actually got replaced.

Also really good for wiring looms, automotive and marine.

MB wrote: I haven't put anything under braid for years, maybe a decade and no issues! Overhead reels and spinning reels, trout to marlin reels.

Same here, only got 2 mono reels in the whole fleet, everything else is straight braid to the spool arbor, only had braid slip once and that was due to spooling it way too loose.

Couple of reels running silly amounts of drag too. Spool it properly and you won't have issues.

Doug - not sure why. But to have a cushion seems familiar.