Want the absolute best?
Bandit Machine Works is the name.
Ran those with their adjustable locker head in our AHDRA racer looooooooooooooooooooong before these message boards were even a dream.
And yes, an AIM 95LT in conjuction with a Barnett spring, as we use here WILL NOT/DOES NOT slip, even in very aggressive 124"s. Period.
Scott

 

Alto carbonite plates
Mueller Power Clutch
S&S or HD heavy spring

Holds my 130TQ all day.

That being said, upgrading one of the listed clutches is probably the best option. Mine was a great, cheap option that has held well for the last 5K miles.

 

all the advise given so far is good and i have no issues with that. to the op, if you are happy with the parts that you have and are just looking to clear up the slip that you have, do you already have a hi performance spring installed? if not they are available as an individual unit that will help, but they usually come with a larger lever effort. SE, Barnett and others offer them for the stock basket set ups. if you feel the need for a larger upgrade, all the advise given is good.
One other thing, as Scott mentioned, the Bandit stuff is awesome and always has been, but you might want to take into consideration that they are meant for racing applications, because of this, the splines in the inner hubs have issues, burnouts, lots of hard launches, too many and the hub splines go away. For a racer, this is not an issues and is a viable trade off for the rest of the benefits that come with the assembly. for a street rider, having to periodically install a new clutch hub can get costly. The folks at Bandit are great and they have a great product, this is just something that i felt i should put out there because of how many i have had to change in the past and the customers that had these units did not know about the possibilities.
m

 

I've measured, stock 280 and 330 lb springs, 380lb se springs and 480 aim and barnett springs.. They don't rock over except for the 280 does it a little.. They are more of a constant pressure spring. Once preloaded, the pressure is consistent until flat.

IMO it makes for a better spring than a standard coil as coil springs get heavier as they are compressed.

Scorpions are good but not needed on a 107 (imo). They are nice on bigger motors for sure.. If you like doing burnouts or wheelies the might be worth while.

I don't care for centrifugal assist clutch pressure systems as the make pulling the clutch in harder at higher RPMs.

I'd go for a 380 lb diaphragm spring on a 107 with Kevlar stock plate count clutch.

 

They offer street set-ups.
Scott