How would I create a conditional discount that would only be applied when certain items are purchased together. Been working through several apps and am yet to find one that I have figured out how to do this. Thanks in advance!!
It seems like you haven't tried Upsell Bundles which allows you to create product bundles without hidden duplicates. It makes sense and it's not cause any problem for inventory control.
Also if you only require an option to create tiered pricing, then Pricing By Quantity will be a good solution for you too. Offer flexible pricing based on how much a customer buys and increase your sales.