Electrolyte Stamina vs Endurolytes

I couldnt seem to find Endurolytes anywhere locally. GNC and Vitamin Shopppppe didnt have them. I ended up with Electrolyte Stamina. Kind of a hybrid of electrolytes and minerals and seaweed, kelp, etc. Made with concentrate from the Great Salt Lake. Smells and tastes like crap. 300 tablets for about $21 at Vitamin Shoppppe. I just want something to keep me from cramping during long training and races.

Electrolyte Stamina
http://www.vitaminshoppe.com/store/en/browse/sku_detail.jsp?id=TM-1...
(keep in mind a "Serving" is 6 tabs, so divide numbers by 6 for a per tab dosage)

vs

Hammer Endurolytes
http://www.e-caps.com/za/ECP?PAGE=PRODUCT&PROD.ID=4037&OMI=&AMI=17#...
click on nutrition info

The electrolyte stamina seems to have more of the sodium, chloride, potassium, and magnesium (the 4 most crucial electrolytes?) than the hammer capsule, per pill. That would mean you could take less pills during exercise. Plus they are 300 for $21 vs about 120 for $18. Anyone try this supplement?