my frame has that geo(except for 358mm cs and 655 reach,which makes it even more feeling long at the front),and its quite trialsy without being totally un-streety.i like the way my frame rides a lot,and i´d recommend to give that geo a try.
if i´d put a modlike stem on it,it would ride like a comp bike,i would just have to mount a fork with longer rake to get a bit of compy wheelbase.
problem is,what suits me could be weird for everyone else,sooo,pointless post of the day somehow.
if i where in the uk or you here in germany i´d happily let you jump on my bike and have a go though