I guess most tube-o-philes have done some tube rolling, but that was either try and guess, or just trying a different make of the same type.
I propose to you my RH Universal amp (DIY) as an advanced, if not "the" tube rolling platform. Besides standing out with a sound recognized as excellent by many DIY-ers, this design lets you have more fun than you would expect.
Please check out my blog and share your ideas and experiences. I do not know if there are enough DIY-ers in this forum - but I guess those lacking the necessary skills or time to build their own amps can always ask some experienced DIY guys nearby for help.
rh-amplifiers.blogspot.com
Regards,
Alex