Power Feeder on a Spindle

My new power feeder arrived yesterday and I have a few questions http://www.axminster.co.uk/name/APTCPF/sfile/1/jump/0/product-Axminster-4-Speed-Power-Feed-21291.htm
1. Should I set a 1/4" grip on the timber putting it through or as light as possible 2. What angle of toe in do you find works best 3. Can you use it on a jointer to surface plane
Also are there any good online tutorial/demo on the web?
Cheers Connor

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