If you have not done a cycle in 2 years I'd recommend holding on the tren and use it for a subsequent cycle once your body has adjusted to Anabolic Androgenic Steroids (AAS) again.
you do not say how many cycles you have done previous to the 2 year lay off.
If you do 500mg/wk now I'm sure you will be very satisfied by the results. Save the tren for then cycle after this one. Especially if you've been off for a while, your receptors are very fresh so they will soak up lots!