Just purchased the I-MIG 275P for aluminum welding with a spool gun. Having some troubles getting some nice setting with pulse to get that nice ?dime? pattern in the bead. I?m using .035 5356 wire on mainly 1/4 and 3/16 aluminum. Does anyone know some setting to get me started? All info around volts and wire speed and all the fine tuning for the pulse settings would be great. Thanks.