Breeding spiders together

[Neal]

I have a question about breeding spiders. I am looking at breeding spider fire to a vanilla spider for the odds of getting a few more project animals and having decent animals for sale also.

Will breeding the spiders to each other increase the chance of wobel etc?

I've never looked up the issue but I've came across it by chance with searching for other stuff. If I'm not mistaken and please don't take me for sure because I could of misread it and it's been awhile, also I have no first hand experience with it. The threads that I've came across talk about the spider x spider being deadly or something with none of them making it through though nobody could actually provide an evidence or the original source regarding it.