Great shot mario! you should see my progression though the M83 journey!
Step 1
http://brendanmitchell.net/?page_id=...oto=91&occur=1
Step 2
http://brendanmitchell.net/?page_id=...oto=98&occur=1
Step 3
http://brendanmitchell.net/wp-conten...011/04/M83.jpg
there is close to 3 years of experience in that and i have so far to go it isn't funny!
Just remember that your doing just fine and the little things you learn along the way will drag you along the same trail!
have you done the Crayford mod to your focuser? using a knife sharpening stone to make the contact point dead flat? this will give your focuser more grip on the tube. also make sure to set focus and lock it or adjust the focuser to be tighter and hence more pressure to the draw tube.
Brendan