Gatorade Endurance Formula?

I use the Gatorade Endurance and don't really see much of a difference

Thanks for all the posts - some good information on here.   I ran a 50k a couple of weeks ago, the temp was in the low 80's and humid.  I made it through the race with just normal Gatorade, 2 Lava Salts per hour and a PowerGel every 45 minutes.  However I did feel some minor cramping in my calfs.    I have decided to try Enduralytes with the normal Gatorade and water to see if that is going to be a good mix for me.  I'm on a budget and don't like to spend a bunch of money if I don't have to and the Enduralytes are still within my budget. 

I'm a BOP->MOP so I'm not too concerned about the competition aspect of tri's or ultra's I just want to enjoy them, keep my body in great shape while training and not cramp up durning the event.

How does one you test their sweat rate?  ... seems like an excellent piece of knowledge to have going into a long distance work-out/race.

My method is real simple, I'm sure someone may chime in with a better one.

1. I check my weight naked on a digital scale
2. Workout for one hour
3. Towel off, check my weight naked again
4. Total oz lost=Difference between Starting and Ending Weight+Total weight in oz that I consume during the hour.

I usually can weigh the same after one hour of working out + downing 50 oz of Gatorade, so it makes it simple, I must have lost 50oz of sweat.

Now I have seen and read many times that you can only absorb 25-30 oz per hour, but I think that might be an average person, I'm not average when it comes to sweating and that average person may weigh 150lbs - I weigh right at 190, so I need more than the average.

But as many have said, it is really an experiment with yourself - I'm still working on it, however my wife has completed 2 ironmans and 4 HIMs and multiple other endurance events and has never cramped, but she weighs about 110lbs and doesn't sweat a lot, so what works for someone else it likely to be different with you depending on your size and makeup.

Here's what I don't understand in regards to using Hammer Products or like products vs. Gatorade Endurance Formula, and maybe someone here can enlighten me... :-)

In regards to nutrition and the endurance athlete (mainly triathletes), I always hear that to perform at your best in traithlons, an athlete should simulate in training what he/she will be doing/consuming in competition. If you consume something on race day that is different than what you do consistently in training, some major GI distress can occur. So, if Gatorade Endurance Formula will be the only electrolyte replacement drink on the course in a pretty long endurance event, why then train with Hammer Products or the like seeing that on race day only Gatorade Endurance will be available. Now, I have a heavy sweat rate as well so it would be impossible to carry on me Hammer Products or similar products for a long endurance race. I would eventually run out and have to start drinking the Gatorade.

I could never figure this out so if anyone has the answer, please let me know. Thanks.