hi,all i am tacking test,400,,at 1ml,aw,but the pip is unreel.so i was thinking of just swapping over to test,deca,500,as i can top up with the test,400,as its the same ugl,so can i tack 1ml of deca,test,and 1/2ml of test blend ew.any info would be good.as i don,t like injecting twice aw.