That would be an interesting switch but I'd do it the other way around and finish with Tren. I just am finishing up a cycle of Test eth 250/wk1-12 EQ 600/wk1-12 and Tren 75 ED 6-12. With great results...oh shit I just realized you started 6 weeks ago. The thing about EQ is that it works better at 600mgs and I didn't see good progress until week 6. Maybe anavar would be a better switch....if you can afford it! BTW how did you like the EOD results? P.S. I've posted a few picts from a week ago and I have 1 week left until I finish.
What are your stats, cycle history? You dont want to run tren for 12 weeks..also like monkey said you would have been better off running it at the end..furthermore theres nothing qwrong with just test and winny so dont feel that you need to add another compound into the mix!!!