Solving 130-bit is equivalent to solving 4 to 8 billion 66-bit puzzles
You're unprofessional if you compare 66 and 130, because BSGS is much faster than bruteforce. But I agree that p66 is shorter on same price HW.
p.s. Hey, guys. Another discussion of stealing bot.
What if you (finder of p66)
make 2 transactions by yourself
1st - transfer BTC to your wallet with reasonable fee and RBF False.
and after several seconds you doublespend everything with fee == 6.6BTC and RBF true
so, either you win, either nobody, right?