Hi I cannot get Transpocket 1500 out of my mind since using it in classroom years back. There were a bunch of TIG/MMA Esab Caddys and we were given choice, of course we chose similar machines. The lone red left alone. One day 3/4 into the course my curiosity boiled over and I was hooked. It was not massively better but the arc was different, particularly when near sticking it in very short arc. I finished the course using little red box. So what do you say, which one has that magic touch? I have heard the Micorstick has been engineered by the same guy who did Transpocket, which is nice to know but has no other meaning. About Pico I know nothing, except it has pulse for both MMA & TIG, the 160 cel puls I mean. Never even seen the cellulose rod, but I love Oerlikon Spezial.