Front Frame Rail Rot

I got into the garage this weekend and repaired the section that I showed earlier. This is what I did. I cut out the offending sections to good metal. I then made patch panels for the top of the frame and for the sections below the upper control arm mounts. Painted the inside of the frame rail with weld through primer and welded the sections in. I hope this will not give me headaches in the future. What do you guys think?

Also, please give me an idea what I need to do with my welder. It doesn't seem to be sinking the weld like I would like to see. It's a Hobart 140, CO2/Argon mix, and 0.030 wire.

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