Jim.
I totally agree the Weller brand is top quality. I have two a smaller 140/100 and a newer 280/200. Although the 140/100 was adequate for most things (I had this for over 30 years) I got the higher power one a couple years ago and it makes tank building much easier. One thing I realized only a couple years ago is the trigger works with the high output on the first click and the low output when you squeeze it all the way back (should have taken the time to read the instruction 30 years ago).
I don't understand the reasoning I guess since they were developed for fast electronic work the lower power was used most so that's the way they set the trigger up. Weller also made an even higher power one with a single straight tip model (GT7A) that was more like an iron, my former flying buddy Roy Trantham had one and it was almost too hot for most small jobs.
All the Weller soldering guns are great, high quality and last a long time.
Best, DennisT