First aluminum tig welds

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Well, pretty darn quick I was able to do a striaght line...not the best of course, but ok for never reading a book or having someone guide me.I then tried doing a lap weld.  I didn't do so great at that, the top two squares are my first attpents.  Then I spent about 3 hours doing some fill welds on an intake manifold and really got to know how the aluminum reacts to the arc and how it manipulates the puddle.I then went back to the plate and tried another lap weld...as you can see, I did much better.  The top of the bottom square I tried without filler.  I am still not good enough to weld without filler.  So, do you guys have any pointers on improving my lap welds further?  I did have a problem with making a narrow bead, they would tend to spread out.  I tried increasing the frequency, but it didn't seem to help.  I am using a syncrowave 250.
Reply:Looking good pardner....nope nothi gyou can do about width.  Id like when you get the chance to go to a bike shop.  Like a bicycle and a fancy one at that.  Scwinn or something.  Ask the guy to show you aluminum bicycles.  Look at the welds, you will find the welds are all very large. Then ask himn to show you the ones made of chrome moly or also called 4130.   You find these welds to be real small.  Its aluminums nature with the ac current I beleive to make em soo big.  But nothing you can do to stop it.  Looking good and youre well on your way to perfecting the art. Good luckIF it Catches...Let it Burn
Reply:My ol' buddy Riley M. once Tig'd  two Coke cans on top of each other.I tried and got about 50% completely around. Never could do it again.Right tools and settings were everything!.  I guess I'll never work for Coke.OBTW , found a good deal on a pedestel ring roller from Pro-Line Trading on Ebay.  RG