I have been on the fence about selling my 590 and upgrading to the Bull. I keep going back and forth because I really like the 590 and it gets to temp and holds it solid. Anyway, I had an ad out and someone just contacted me asking for a pic of the plaque on the back of the hopper so they can see when it was manufactured? I looked at the plaque and it just shows the model number and SN. I don’t mind sending this but how can they tell the mfg date? My concern is I’ve heard people trying to get the SN to buy the controllers from RecTeq? Any thoughts?