Knackered parting tool holder

[Dell]

Okay I have received the rear parting kit form Myford but have a couple of questions 1st the blade is tapered so it sits slightly crooked in the holder so should I add a packer to strengthen it, 2nd the blade sits in the holder pointing down and the blade has a rake on it but should I grind it to look like picture or use as is, you can probably tell I haven’t done much parting, what I have done is with a graver on brass on my Pultra.

Dell

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