GreggerKBR
Head Pro
Some possible things to investigate -
(a) Have you been gripping down? Therefore making shaft length the same? That will mean same clubhead speed.
(b) What balls are you hitting? Range balls (and when wet) can make a mess of spin rates and "ball speed".
In the cooler winter air, sometimes high launch angle with spinning balls tend to carry a comparable distance to a lower spinning shot.
(c) Landing in wet turf - may make it look the same but on dry turf could be +5 yards difference.
There are other factors, ball position, centered strike, launch angle etc.
using something like Trackman would answer the question
(a) Have you been gripping down? Therefore making shaft length the same? That will mean same clubhead speed.
(b) What balls are you hitting? Range balls (and when wet) can make a mess of spin rates and "ball speed".
In the cooler winter air, sometimes high launch angle with spinning balls tend to carry a comparable distance to a lower spinning shot.
(c) Landing in wet turf - may make it look the same but on dry turf could be +5 yards difference.
There are other factors, ball position, centered strike, launch angle etc.
using something like Trackman would answer the question