Auto trans tune on VF Redline, do I need a "specialist"?

[Chargin]

Im getting my L77 tuned this week and I asked the guy doing it to tune the trans as well because I have heard it really makes a big diference.
He kind of went "ahhh yeah, we can do that, ahh what do you want?"
Some back and forth and all his answers were very vague and the price was very cheap, $250.
I was talking to another shop prior and they were very exact in what they said they could and would do but they were too busy so recommended this other shop, their price for the trans tune was $600. They mentioned I could have sport mode be very aggressive and normal auto mode be stock which sounded good.
So, is tuning an auto easy? Do I want to have an expert do it to get good results? I dont have much confidance in these guys after talking to them but maybe its not hard.
What should I be asking for, Im just after good street performance, its not a daily driver either, I have seen the following:
• Transmission shift points
• Transmission shift firmness
• Transmission torque reduction
• Transmission shift pressure
• Torque converter clutch
The shop is here in SA, I dont really want to name them... but its in Seaford.

 

[Ginger Beer]

Step 1. Find a performance auto trans shop, i.e. somewhere that builds upgraded trans for drag racing, or heavy towing, loom at the reviews, look at the stuff they are working on

Step 2. Tell them what you want

Step 3. Ask them what you really need and how much it costs drive in drive out

Step 4. Spend your coin on a shift kit, trans cooler (heat is the No. 1 killer of transmissions, poor servicing is the 2nd killer), and tune, and.......... a slightly higher stall converter if the budget allows

99% of mechanics have no idea how to tune a transmission to suit your power, a "good" trans specialist will, and also tune it for reliability, get you the right converter for your intended use and power requirements

For $600 I would expect the tuner to go to the drags, pull some logs and test and adjust

The most I have ever paid for tuning my 4l60e is $200, they tickled the tune, drove it as hard as they could on the street to sort shift points, line pressure and other stuff to suit the power the car is making, then adjusted from there, the trans has been loving life, but I do get it serviced every year