;I thought I was going nuts... I would use llCSV2List to convert a bunch of numbers passed from another script into a list, but then when I tried to search for the numbers with llListFindList(list, [integerVariable]) it would fail because 4 does not equal "4".
For now I will probably use llParseString2List to manually insert the integers, or just cast the test integer to a string (easier but slower).