What's the weight? are they 2 or 3 vac?
Not sure if most 3 vac machines are 5" vac motors is there too much voltage for the 7" ones?
You do have to look at what you want from a machine, Scorpion is the lightest, Airflex easiest to work on and maybe looks the best, Alltec have the most experience and they make a meaty machine, Ashbys Ninjas have everything from extra heat and vac boosters but Ashbys service can let them down although I have not been on the recieving end of it.
I guess that it will be shown at the cleaning show in March.
Shaun