I've been doing quite a bit of welding with my Powertig 250EX and it works really well....except the torch is way too big and the cables are way too stiff to allow for more precise control of the torch.
So I went out and bought a Weldec WT-20F-25 225 AMP water cooled tig torch. I read some of the other posts about changing out the torch and thank you for all the information on what is needed.
I highly recommend getting a smaller torch. The WP18 that is supplied by Everlast is a monster compared to the Weldtec torch. I understand that Everlast has smaller torches now available for switching out to a more comfortable torch. The Weldtec torch is a flex head and is really nice. My welds got better when I switched to this torch. The WP18 factory torch is just too stiff and heavy for comfortable welding for any length of time.
Check out some of the other posts on Powertig 250 torch replacement and you will get some really good information on what you need to do.