I just got a premium last week that came straight from stern, build date was August 2015. It had 1.41 code, but had the bg ramp fix with foam pads underneath. It's a tough game for sure and I dont have a good feel for the game yet, but still managed to crack 530 mil on factory settings. I like the game a lot and the updated code is a big improvement.
As wide as the bg ramp is, I think it's too steep as i get a good number of airballs off it.
I made my own light mod to light up bg using an LED strip and tied it to the sign above, added interactive undercabinet lighting tied into the RR flasher, lit up the ball trough, shaker and side mirrors. Need to do something with the crossbow and possibly get a prison tower. Have a few other ideas too.