I'm also stringing my extreme pro with confidential 1.25, 50/48 and the control i am getting right off the stringing machine is unmatched for a good 6 hours.
Anyways, followed Peyote's idea, i tried mach10 in the mains and confidential in the crosses both 1.25 50/48, (because i have a reel of confi and someone's already tried it and wished for similar performance with just a bit more power)
and after about 40 min, there was already (severe) notching on mach 10. Seems confi's edges dug into mach's very quickly, (too quickly!). It just feels as if confi as a string is much more substantial.
Would love to hear other people's thoughts on shaped string cross with mach 10.
The feeling was absolutely lovely though, cloudy soft with good pop and good control. I just got a feeling these 2 strings arent hybrid compatible.
I would post a pic, if it would be possible from my phone gallery.
I am now trying confi in the mains, mach crosses, since i have 6m of mach left. Hope for a different result.
And afterwards since i have another set left will try full bed of mach (def strung tighter), but since confi is everything my extreme pro needs to be tamed with pinpoint precision, its unlikely i will switch.
Will update later on.
All the best,
L.