my original cycle plans were to do dbol 1-3, decca 1-10, & sust 1-12. i know the majority of people on here say to run test to the end of a cycle. my friend however thinks i should do dbol 1-3, sust 1-10, & decca 3-13. he feels that the sust will still be in your system for 4 weeks after u stop taking it so it's not necessary to go with it to the end. any thoughts?

dbol-25 mg p/day
decca 300mg p/week (in 2 shots)
sust 600mg p/week (in 2 shots)