What size bore is the Master cyl.? 
My guess is it is 1 1/4"  (Thinking out loud. Not really relevant) 
 
For the 1 3/8" bore wheel cylinder there will be less pressure applied to the shoe, than with the 1 1/2" bore cylinder, for any given pedal pressure. 
Basically you will get used to it, either way. 
The linings you choose will possibly make a more noticeable difference. 
 
I will also make use of the Trump indemnity, Just in case  (Thanks Bob!)
		 
		
		
		
		
		
		
			
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				Bluebell 
 
Carrier Armoured O.P. No1 Mk3 W.  T84991 
Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. 
Dodge WC55. 37mm Gun Motor Carriage M6 
Jeep Mb #135668 
So many questions....
			 
		
		
		
		
		
	
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