M/T ET Streets ?

[MNTNGTS99]

Tried some ET streets for the first time and have mixed emotions so far. I only made three passes on them so I don't have a lot of data to go off of.

First pass 16 lb's hard burn-out 3000 rpm = 1.69 60'
2nd pass 15.5 lb's med burn-out 3500 rpm = 1.71 60'
3rd pass 15 lb's hard burn-out 4000 rpm = 1.73 60'

Put my BFG DR's back on and made three more run's with the worst 60' being a 1.61.

The M/T ET streets are 28/12.5 Did I go to tall ?

What do most use for tire pressure and what rpm ?

Thanks