Yeah i use the 23 strat. And i've failed a couple of 24's and it's not terribly difficult, but it definately requires a solid run with fast klobb guard and great warps.
Comparing to Ace's 24, my runs are definately very close. Can't imagine i'd be more than a tenth or two behind on the best of these 25's (if even that). That'd make Ace's 24 a pretty high decimal.
I guess Ace would know better than me though.