Hi everyone,let me start by stating this is not about bashing red or blue .Just looking for the best electric ,single phase machine, to learn to pipe weld ,and get my certification,for gas pipe welding 100 percent x ray etc. Can get a lincoln 200 d machine or 300 machine anytime from work, but to weld at home ,for 4 or 5 hrs at home in my development, people be shooting at me if you no what i mean with the noise of those babys.Here is what i need to burn 6010- 5/32 rods for root pass, and 7010- 3/16 for cap,been looking at the miller cst 280 or lincoln invert 275 ,i here you cant go wrong with either machine,but im learning, so which machine handles the 6010 rod better on root passes at single phase,lincoln claims there machine has no derating at single phase ,the miller does, but does that even matter for what im burning.Miller claims there machine you dont need to set any switch (crisp mode or hot start etc.on lincolns)because it does it automatic.One more thing, it dosent have to be either of these machine, if you feel there is a machine (electric) that can burn 6010 rod well ,but dont want to spend more then i have to ,because if i do get certified ,our truck are all big lincoln 200 or 300 machines.Any help here thank you ,and please it not about red or blue .