Heavy Diaphragma clutch

Hi.
I replaced my spring type clutch with a 9.1/2 Borg&Beck diaphragma clutch in my Jag MK2 3.8. I have a Moss gearbox. I expected it to be lighter than the spring type clutch but it was a bit heavier to push down with the diaphragma. That was disappointing.
Has anyone experienced the same thing ?
Regards
Jarmo

I went from a 10" spring type to a 9.5" diaphragm in my e type. Found the new clutch to be a more even feel through travel, a bit lighter and more progressive on take up. Paul