Just a small correction here (I've been on vacation).... I liked JG and liked the coffee part of it. I asked for a custom flavor that was only the coffee part of JG. And I'm thinking that's exactly what I got. As it turned out, it was a pretty good coffee (as there are very few out there) but it was also sweet. I actually don't like sweet coffee. So I asked to reduce the sweetness in Kent's Blend and (now I'm guessing) I think the part of JG that was coffee had a sweetness in the base coffee flavor that was used, so there was no way of 'reducing' that sweetness. Wlad tried some other ploys in trying to tweak it for me - one was using part of the Café Au Lait flavoring but there is a note in that (which comes off as 'maple' to me - but maybe not for all) which I didn't care for, so I reverted to the original Kent's Blend.
What I figured is that it was the 'cigarettes' part of the 'coffee and cigarettes' blurb for JG that actually cut the sweetness of the coffee part. And I'm pretty sure that House Blend is either
the cigarette part of JG (or something very close) so I have ended up adding a bit of House Blend to the Kent's Blend and it is not as sweet for me. In fact, that combo is very close to my profiled JG Blend where I asked for 'more coffee, less cigarettes' and frankly it is now my No. 1 vape and truly a "Kent's Blend"

To grasp the significance of that, you'd have to know that I've been vaping the same 4 or 5 flavors from Decadent Vapours exclusively for nearly 4 years now, with the BWB applewood and espresso being the only exceptions.
I have also reverted to using BWB espresso to cut the sweetness of Kent's Blend and that works fairly well too. I drip my coffee vape so sometimes I just drip straight Kent's Blend too

Raising the wattage tends to reduce sweetness and enhance the coffee which is really 'heat resistant' - coffee flavors love wattage