just a note, bullcity replied to me and is working on a deal for quantities of factory sealed bottles. no pricing yet but they are so competitive on their 10ml bottles I can't imagine he wouldn't be able to get close on bulk. Especially for factory bottles. I wanted to give bullcity a shot first because I have enjoyed the fast shipping and service to this point. If we can't reach a deal then I will reach out to buyhangsen. I do have a 10ml coming from RTS as part of another order for someone else so I will see how it compares. For me, 50ml bottles sizes would actually be the best. I like it at 5% so I could drop it right into a 1liter bottle of base and be done with it, not even break out the scales...(I would anyway but just saying).
Great let us know how you make out.