Quote Originally Posted by srp View Post
Yea, the actual number does not matter, its if it will have a focused arc is whats important. I thought the EXT's had separate electrode negative and positive amperage gains. I guess I was wrong? The dual pulse sounds cool.
The 250EXT has separate electrode negative and positive amperage gains, but no adjustable wave forms.

The 210EXT has 3 wave forms, but no separate electrode negative and positive amperage gains.

They use 2 different methods to arrive at similar results.

I will report back with details on the waveforms and balance controls this weekend