opinion on new blood work after switching test brands mid cycle

hello i am on wk 8 of a 12 wk cycle ..started with test e 500 mg a wk used that for 6 wks blood test showed test greater than 1500 .. was having pretty bad pip so i switched brands and went from test e to test c ..my question is i have been using the test c for 2 wks 600mg a wk,i did get this from a reputable source here .,but wanted to verify quality .how long should i wait to have blood work done again . thanks

another 2 weeks I guess, for four weeks total. Ideally I'd say 5-6 but by then your cycle is almost over and there's not really much point

Old test should clear in 2-3 weeks so 4 weeks is fine ...