The fact that you are turning for help to this forum, instead of to Roland's support department just goes to underscore my perepetual complaint about extremely poor customer focus at Roland. To not have telephone or email support with quick response for users of new, supported instruments, which are still under warranty is INEXCUSABLE.

They spend thousands of dollars making instruments with features that people do not want, but will close their ears when we ask for specific features, or for help.

I don't know how G-70 compares with other top instruments (as I have not had a chance to hear it), but all other things being equal, I would rather go with Yamaha (or GEM or Ketron) which have support departments which can be contacted.