proper way to handle rescued pit mix at dog park

Question
I want to bring my recently rescued pit mix, Lola to the dog park.  She gets along pretty well with my other dogs, but she has some dog aggression to strange dogs. Please tell me the proper way to handle her at the park.  I would appreciate some specific directions and advice.

Answer
As the responsible owner of a part Pit, you want to make sure that she is not a danger to other dogs.  Pits are known to be more dog aggressive than other breeds, although certainly there are individuals of that breed or mixes of that breed that are socially appropriate with other dogs.  The trouble is that no one wants their dogs used as guinea pigs at the dog park, just in case.  Also, when Pits decide to get serious, the warning signals aren't always readily apparent to humans, so the situation can go downhill in a New York hurry.  So, my advice is to find a local positive trainer or behaviorist who has experience with aggression and have the dog evaluated in person.  You don't want generic advice for this sort of thing - you want a professional to give you good advice about whether this is a dog that would be better off not participating at dog parks.  Some dogs, regardless of breed, are not comfy in that setting anyway, and prefer smaller groups of doggy friends. Let a pro help you decide what's best for your own dog.  I have four dogs, and to be honest, even my therapy dogs are not the types who enjoy that much chaos.  And, my little Aussie loves to play when there are one or two dogs, but will not leave my side in a huge group where there is a lot of activity, although she will go chase a tennis ball.  So, dogs have individual preferences.
You should know, too, that 80% of aggression is actually rooted in fear or anxiety, so most dogs that aggress are simply wanting more personal space because they are scared.  This is a common reaction when dogs are leashed, too, because they realize how "trapped" they are.  So, they become reactive on leash when they would simply have greeted nicely if they had been off leash.
Members of the herding group are often snarky at dogs that approach and block their view (after all, they need to scan their environment for predators and keep the "sheep" all bunched up together and safe LOL)
Do have some regard for your dog's preferences, and don't fall victim to your desire to have fun at the dog park.  It could be that she's just a dog that would prefer another activity.  Maybe you could teach her to pull weight and have contests with some of the dogs whose owners you've met there.  Or, maybe you could afford some agility classes (Pits and Labs can do agility, too, it's not just for Border Collies!)
I'm sure you'll find a fun way to enjoy this new dog even if the dog park isn't her forte.  It's so important for any dog with Pit breeding NOT to become a statistic, or even look like a statistic...all responsible dog owners need to be proactive to protect all our rights to own our breed of choice.