Well since it's acetate it will be QUALITY time on tren, since it shoudl kick in within the first 1-2 weeks, as opposed to 4-5 weeks with enanthate. The reason for the 8 week limit (in my opinion up to 10 is fine but regardless) is that tren is very toxic to your kidney and somewhat toxic to you're liver. You need to give your body a break, hence the limit.