I dont know based on what I have seen and researched 500 is a bare minumum for a first cycle
if those that use only 250 or 300 a week tend to "Stack" it with another 250-400 od Deca, EQ or Primo
if you do Test only
either front load the first 2 weeks to get blood levels up asap
OR do 4 weeks of Dbol in the begining