You can transfer your lines, but I don't know if you need to run it through a program like farmworks or not.  rtx has worked great for me. I comes with glonass for the life of the subscribtion so I almost never lose signal and once it is converged it only takes a minute or two for it to rebound after getting in the clear. We added a second monitor on rtx for this year.  I traded my 500 for the free unlock last December.  It did suck to have to replace the ezboom with field IQ, but FIQ has some more user friendly features that I fell in love with right away.