dude! im impressed, I have buddies that have been welding 20 years that cant do that nice of a job. well done.
youll have no issues actual welding the stainless. the challenge there is round tubing and tight quarters. think of the collector. don’t be afraid to get that tungsten stickin way the fuck out and let the gas start for a second or 2 before u strike the arc.
if u walked into my shop and did that and said u were only welding 2 mos id hire u on the spot.