I agree that a short stubby bottle like Patron will end up amorphic but won’t hurt to put in a slumping mold and see what happens 1375-1400F is a good peak range. you can usually fuse bottles from the same manufacturer to themselves. Also, some beer bottle glass from different brands is compatable but it is ultimately trial and error. Since the COE of bottle glass is higher than art glass so fusion temperatures need to be higher 1550-1600F. Again, trial and error. Hope this helps.