Start EQ 2-3 weeks into cycle?

Ok. My next cycle, to commence in July-August, will be
QV EQ (500 mg/wk), QV Test Enan (625 mg/wk) 1-12, and D-Bol
(25-30 mg/ed) 1-4. I have heard that some people like to get a late start on the EQ, say in week 2 or 3. I think the mentality there is to solidify the gains made from the D-bol and test. Are there any actual advantages to this, or should I just run both the Test and the EQ weeks 1-12?

I would run both weeks 1-12

If anything I would END it early so everything leaves your system at the same time.