personally NEVER run a test cycle less than 12 weeks --just me I guess
I agree with bigbumpkin ^^^^ but it appears he doesn't have that choice right now?
I guess he has a 'fixed' amount of T at the moment?
As a side note, if he is an older gentleman a long cycle or even a TRT/blast/cruise should be a strong consideration if he is going to even cycle gear IMHO. ((Be sure and do your blood work if you do 'cruise' or take a long run of test and watch your blood pressure closely as well.))
Best of luck!