Smarty Jr.

If you can't tell the difference, it didn't load a 70hp tune.

My Bully Dog is run on extreme 100% of the time which is supposed to be 140 at the wheels in my 2005 Cummins. I had the retune feature set too low when I first installed and towing on hard pulls on the interstate it would easily get to that temperature and retune back to stock. The truck literally felt like it fell on its face. Once it cooled off it goes back to the last tune. When it did it would literally rattle the dash it came back in so hard. I raised my retune to 230* and now drive by temp under hard pulls meaning I start easing up on it around 215* to keep it from detuning.

According to MADS
Setting #1: 40hp/80 torque
2: 70hp/140 torque
3: 100hp/200 torque

Basically twice the HP Increase

SO your 5.9L 325HP/610 torque CTD increase on #2 should have been noticeable
395HP/750 torque -----especially the torque increase

Googling "smarty jr dyno" reveals plenty of people who have tested the tuner on a dyno compared to stock.

I agree with TnP. The average time tuned should be quicker than untuned.

However, there are some draw backs in our trucks. The Ram torque converter is not very efficient at putting power to the ground when unlocked. I have never seen the actual specs, but I have heard that its is about 70% on a good day which is not a great number. That is a lot of wasted horsepower. Once locked, it will pull like a train.

Smoke and mirrors for many of these kits.

75 HP is a bunch and you should easily be able to feel it.

I would do this: Find a county road that is straight and no traffic. Set it to stock and make a measured run from A to B. (1/4 mile or so if you can)

Set your tune. Make the same run. You should shave a bunch of time off your run if you truly have 75 more HP.