I have yet to try over clock modes.

I simply don't  have the cooling available.

I know that  in a 67f room  which I can't do again until it gets cold outside  I got my best results

I am pretty sure   in a 60f room  you can do an overclock and get 14th with good numbers
I am certain in a 50f room  you can do an overclock and gt 14.2 th with good numbers.

But I can't create that environment unit the fall.

there have to be some people with a good psu  that will do 2400 watts such as the delta sold by parallel miner
or the hp 2450 watt psu that can do a solid over clock in a cool room.

EDIT  it is mom's day and I guess ogombil's mom wants some numbers for overclock
we had a t-storm and this morning it is 55f so I am doing some overclock

i did not get above 13900 using  any setting

my best was

watts 1414
hash 13900
temp© 20/69

on --avalon8-voltage-level-offset +1

note to be sure I had lots of psu overhead I did 2 bitmain apw3++ which were using 240 volts and 1414 watts since they can provide close to 3000 volts I had lots of overhead.