Don,
Thank you for your time and patience with us mere mortals.
I 'think' I understand the numbers and the science.At least I am not getting beat up about it.
The reason for mentioning the K80 was borne from an experience I had 2 years ago.
I have been known to break one or two clays, and manufacturers have offered me their wares to break clays with.
I was given a K gun to use, instantly I commented on how 'dead' it felt.Used it for 4 months and ruined my form, never could get on with it even though I had 3 stocks and the World's titanium resources thrown at it.
I had an intuitive feeling from day one that the 'K' was not for me.
The reason I have mentioned the Guerini is that a friend is a 'works' sponsored Guerini user and I have tried that and it is chalk and cheese different to a 'K' gun.