Thanks for the replies,
I have been riding since 79 so I'm not new to the sport. Just here in the last year or so has gettin' the knee down been a goal
I've just heard or read stories of people draggin' a knee at slow speeds and was just wonderin' what the low limit was. To see the guys on T.V. in hard corners draggin' their knee at what appears to be very slow speed, I was just wantin' to know the way it's done and how slow one can go to achieve it.
And as far as a sander goes, I'll leave that as a last resort as you've stated