Hello, im running into a problem with the product attributes setup. For example i sell RC battery that let customer choose the output plug they want, I just wanted to give them that option but dont want the stock check since its comming from the same stock, just different plug.

Here comes the problem, I setup two options, 1. Standard (no plug), 2. Optional Plug (+3.00). Yes, I have disable the stock check for both options, but when I do that, each option will have the same stock as the battery stock, i.e. if I have 7 batteries, these two options will double the quantity to 14 which then allow customers to order more than 7 in combination of those two options, that's wrong. I just want the stock to keep track of the original stock no matter how many attributes I have. Is that possible at all? I just wanted this for some particular product.

Any help would be greatful.