I have been boosting my SR in the Legends races, its been working go so far. I would 
have been over 4.00 by now if I would stop going to Bristol in the Modified. I killed .15 
SR in one race, sitting at 3.75 D right now. The last Legend race I averaged 15.83 over 
the entire race, a couple of weeks ago that was faster than my personal best. Set my 
fast lap on number 22 with a 15.690 so I know I was really playing it safe.
edit: 
Went a 15.608 on the stick!
So looking forward to a wheel!!!!!  

Strip