I would not of known good numbers for the Nemesis but there ya go I'm sure Bryan's are proven he knows what's up, don't know to much about 11's at snydersville I would hope JP see's this and can help ya there but if your sticking with track tac product I'd be wipping Topaz with the Blacksand at the track, Shellhammers 55's NO internal prep punching 60 for there Regular point shows there not prepped up enough and 8 to 9.5lb of air is to much, I'd be in contact with Dave the III, or Keister KKP KUTZ about exact tire for there. For there night shows I'd guess a 2 oz set wipped little harder, 7 and 6 air max.
Still post your numbers once you confirm them.
Good Luck !!