Hi All.   Hope everyone's week is great.   I have a few questions. 
Did a fitting a month ago (worked hard on my swing this winter).   we eventually opted for the T200 5-6 iron and the T150 7-48.   (standard length and lie)    I swung the stock clubs and KBS tour lite R flex was determined for me.      I like MMC midsized grips and asked for them in the fitting  The stock club I swung would have been D1-D2 (had the stock grip) 
Now my question is pertaining to playing weight.   I know this is a not one answer fit type of question.     I took my new clubs when I got them and measured the swing weight on my Maltby scale.   The 5-PW measure C7.5 and the 48* measures C8.    They feel LIGHT.    
A regular grip is 50 G whereas my MMC midsized is 59-50 g. (10 grams difference approx 2 SW points).   
Shouldn't my clubs I ordered came out at D0 and the 48* slightly higher??   My old irons (2019 T200 I had adjusted for D2 with AMT R300 black shafts)    
I realize that if the existing clubs ( I ordered) were altered (tip weights added) the shaft profile may change and might affect MOI etc.   
Now looking at SW vs midsized grips...    the grip I selected should drop SW 2 points...   by the math...  my irons came out at C7.5 (average).     I hit them in the trackman and I was spraying the ball quite a bit.  I did pick up 5 mph SS though   
I tried graphite shafts in the fitting and for me they didn't work as well as what was selected.  the fitter told me my AMT shafts were too heavy for me.   I understand this 
My existing clubs I have are all SW matched including wedges (D4) and hybrids/FW (D2) and driver is set at D4
If someone could offer an opinion I would be happy to read it.   I just feel these clubs feel a lot more light compared to what I had 
And I realize I went from a progressive weighted set of shafts to a constant weight shaft 
Many Thanks
Dan