Hi Vince.
I like the look too! That dummy engine in the nose gives the sw a look of realism.
I think Roberts just giving me the business.
I personally would prefer the gap to be a tight 1/8.
The gap at 1/4 is probably spot on for engine vibration on the model and the real 3/4.
Since my engine will be vibrating with the cowl and not contrary.
1/8 gap would yeald a nicer fit and finish. My preference.
Currently I am disposed to tightening up that gap. But that might change by the time I get around to it.
Kevin