I just re-concreted my driveway last summer. My neighbor had drive-way envy because I widened mine. He paid 1/2 what I did, but his contractor didn't rebar or pack the dirt; his is already cracking. Kind of reminds me of BudGenius testing services. Bud-G's lab runs the strains through multiple rounds of tests to ensure validity and consistency in testing, all for a low of $50/per strain.

"2 Although testing methodologies are not specifically listed upon each lab's website, as a cost saving measure most laboratories perform only a single test for each flower provided. This does not provide a determination for error. A processing error can only be determined by correlating multiple test results. BudGenius routinely performs multiple tests for each sample received to correct for potential variances in nature, hardware inconsistencies, and to better spot anamolies that can occur throughout the testing process."

http://www.bgmedtech.com/bud-genius

http://budgenius.com/services.html