After adding the pectic enzyme tomorrow, wait 12 hours then pitch the yeast and let it ferment. In about a month, you will have plenty of settlement to rack off of. I wouldn't add a 2nd does of pectic. Not that it will hurt anything, I just don't think you will see that much of a difference. After the 1st racking, and it has time to stabilize, you can then just let it sit and clear on it's own or you can add some sort of fining agent. It will clear more after fermentation is completed as it naturally de-gases. As C02 comes out of suspension, the fines settle out more.