Update for April:
Aired everything out and did a sampling.
The 375f jars are still young. A bit headsy, light color, and oak flavors in a woody sense.
Even in these jars I can start to see that the char is bringing color and the toast more flavors.
The best jar is the one with the toasted stick charred on two sides.
The 400f jars start to turn. The 400T is mild, much like the 375f jars.
The 400TC is the first "good" jar, one I could pour right now. Has definite caramel and blended headsy.
The 400 4C has less flavor, and the 400 2T has a strong oak barrel smell and taste, somewhere between woody and bourbon flavors. Actually reminds me of oak flavors you find in rums. No caramel but light vanilla at the finish.
425 T is a bit headsy, fairly unremarkable but drinks like a mild store bought.
425 2C is pretty dang good. Light caramel, not much vanilla, blends well with the late headsy flavors.
425 4C has solid caramel smell, good oakiness, could happily drink this right now.
425 2T has strong oak barrel, good color, and a unique interesting spice flavor like clove or maybe anise, but very light on back end.
The 400LT is very light and mild, not much different that white. Kinda like kool-aid when you use too much water.
400 MEGA is the one jar that doesn't seem to taste right. Some weird flavors in there, not burnt or smokey, but maybe it's a little of that acrid taste. Just seems totally off compared to the others.
The maple sticks are bringing the strongest color so far.
M400 2C actually smelled a bit like maple syrup when I opened it up. I don't think I just imagined that.
M400 4C is smooth but has less nose and flavor than the 2C. Something from the maple in each but not the caramels and vanillas the I'm seeing with the oak.
Same for the cherry sticks. It's making smooth whiskey but the flavors seem more subtle than the oak. Nice color though.
The white jar still tastes light, mildly sweet, bright and a bit of late heads. I deliberately added in some heads for flavor and to see how the oak blends or balances with those flavors. I'm glad I did because the oak works very well with the light heads character in most of the jars.
While I was at it I poured a few other bottles to compare:
Jameson tasted thin by comparison, smooth and light, obviously less oak character.
Jack Daniels, oaky/woody, sweet, not as much flavor as I remember.
Hudson Whiskey Baby Bourbon is much more of everything, more oak, caramel, vanilla, body, and similar late heads flavors.
Bundaberg Red Extra Smooth Rum filtered with Austraillian Red Gum, delicious like a chocolate bundt cake after all the whiskey!
With the exception of the Mega jar, I'm not getting any over oaked or burnt/acrid flavors. Makes me wonder what happens past 425F.
Right now I'm leaning toward the 425f jars. I could bottle the 4C right now, and the flavors coming from the 2T are very intriguing.
I'm really going to enjoy this adventure. I'm a little surprised just how wide the range of character is right now after about 4 months. Will be interesting to see what happens to the lighter bottles over time, and to see if the darker jars become "overdone" in a year.
Btw, I plan to sample the Gibbs barrel and the BadMo barrel at the 6 month mark.
Back in the attic for now though.