Hey I’m sure I know the answer, but I’m assuming the smaller the weight the less spin it will have and the heavier the weight the more the cg will be lower and to the back which will increase launch and spin correct?
I have seen on a launch monitor the drop in spin with going with lighter weights. There can also be a loss of feel of the club head as you are making changes in SW. I personally am not sensitive to a SW change so I tend to adjust for spin numbers before all else.
I have a 4 g weight in my ISO-T 9.5 and it’s a beast of a driver. Low spin, a great crushed it feel at impact and a boring go forever flight.
I have yet to do a head to head with the ISO-T 9.5 and the KE4 but hope to do it later today.