Ok I have my tren at 115mg/ml concentration and plan on running a cycle like this

1-4 D-bol 40 mg ed
1-8 Tren 115 mg eod
1-12 Test (prop) 450 mg ew

My question is how long to wait to start this cycle. I finished my last run of
1-6 d-bol 45 mg ed
1-10 sustanon 500 mg ew

in early March and finished pct 3 weeks ago