help with adding Tren to cycle

[wrestless]

Have been running prop at approx 375 mg per week with deca at 300 mg per week for the last 3 weeks . I want to add Tren but not sure how long I have to be off Deca to add the Tren. Dosage will be 400mg of prop per week and 300mg of Tren per week for the next 12 weeks. Any help with this and what is maximum time on Tren. I normally run a 16 week cycle.
Thanks!

[Soviet-Strength]

what type of tren is it?

[Bulkn]

You're only running deca for 3-4 weeks??

[gearbox]

Why deca for only 3-4 weeks. Deca needs to be ran much longer then that. Test/Deca will give you solid gains throughout your cycle. I would save the tren for next time around. Who told you that you can not run deca and tren together?