2 problems with your statement.
1. It's not possible to properly setup a proclimb with the stock clutches. If it was possible, AC wouldn't have come out with the "big fail big fin" secondary. Big fin doesn't solve the issues either.
It can be done, just not with what AC has to offer.
2. Everyone should get good belt life with their stock clutches but they don't.
If they do, they are lying or they don't ride hard enough for AC clutch issues to show up.
I get so frustrated at reading when AC riders are constantly blowing belts and having clutch issues. Then Cat offers to sell them an "upgrade" after they have just spent 12k on a new sled. These customers buy Cat belts, Cat oil, and Cat parts loyally. AC is throwing away these valuable customers business away like it doesn't matter . It will never come back. Ever. The distaste is passed on to family and friends and there you see Cats sled business going down in flames. So sad. Actually, it's not sad. It's just not necessary to screw people over like this. Buck up and take care of the customer ffs. Admit your wrong, fix the problem and learn from it.
I don't sell any clutches or offer any services, I just call'em as I see them!