how far into the cycle are you? Are you taking any ancillaries now? (anti e?)
If you are in week 1 then I'd say start it, run it for 3 weeks at 35mgs 30mg then 25mg week 1, 2 3.
If you are already in week 2 or more skip it, most people like it to "kick start" things before the test starts showing its effects.
It can be tough on the liver, can bloat you, cause gyno, etc... so if it was me I'd just skip it, you've got a solid cycle already.