I always dipped the cone tip in some red iron slip. Less than a 1/4". While some say it will provide flux to the cone, I've put 'dipped cones' and non-dipped ones side-by-side in the kiln to see what effect it had; and they bent exactly the same. Placed the cone pack as close as possible to the peep. L & L kiln has good sized peeps so it was never too hard to see the cone at Cone 5-6 temps.
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