Short answer: Yes, if you are going to use patron in a mixed drink, don't short yourself by using crappy other ingredients, Use fresh sweet and sour (easy to make, use google), a nice orange liqueur like grand mariner or patron citron.
Long answer: Why are you using patron in mixed drinks? I have over 20 different kinds of tequila at home and I sip my good stuff, not waste it in a mixed drink. Sure, once in a while maybe but you should hrab a bottle of Cazadores or similar level 100% blue agave tequila for your usual mixed drink.
In the end, it is your money, but either go all the way in your drink or stick to a different price level (which I would do anyways).