On the wraps, start with not so tight and then after it is held you can make tighter wraps.

What I do on short hooks like #6 Sickle (not all jigs) that you don't have room to get a good thread base, because you really need that so it doesn't roll around. If I am tying jig that are giving me that trouble I have some super glue with a brush applicator so I can limit how much I use and I put a small amount on my thread base to keep it in place. You can dab it with a paper towel to get any excess off. Then I get my tail material in place and if it's deer hair I make the first wraps not so tight and then tighten after the first few and keep away from the lowest wrap, the one near the hair tail. I don't remember having that trouble (flaring) with kip tails though.

I mostly use my hand for the real tension with the bobbin doing a little tension. I also use 210 denier flat waxed thread for the most part on jigs.

I use my on made Flexament for coating thread neck type jigs as it will flex some.

For cheap Fleximent...
Flexament is diluted Goop or Shoe Goo. The thinner or solvent is Toluene (Toluol). You can have a lifetime (almost) supply of flexament for about $10. Ace Hdwr. sells Toluene in a quart can for $5-something. A tube of goop is about $4. Squirt some goop in a glass container, then pour in some toluene, and mix it up, let it sit, and mix again until it's dissolved, and you have flexament.

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