So you are running 250mg every 4 days.
As far as the dose of test, keep that the same. There is no point in pyramiding the dosages. Test enanthate will be in your system a few weeks, so pyramiding it will be pointless. If there is any variation in dosage, it would be best to frontload the test to increase blood concentrations faster so you don't have to wait 3-4 weeks for it to kick in.
Test only is a good first cycle.
Do you know when to start PCT? I didn't see you mention that? Also what dosages and how long are you planning for PCT?