if your bondo is thick enough, you'll  need to sand it out (the dome) or you can make it perfectly smooth and build out the area with cardboard... thats what I do... See the cardboard... I put it all the way around (obviously not done yet 
) then I resin coat it then bondo and filler.  I could put it on in the first stage, but the bucket isn't strong enough to attach since it's paper.
		
		
	
	
		
	
		
	
	
		
			
		
		
	
				
			
			
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