Did you guys ring? I honestly didn't say too much about the new amp simply because I didn't have to, its not a huge deviation from the work I do but there are some big tonal differences for the 100w offering. Is it a skeleton key? no. The new amp has a different gain structure (maybe 30% more) and placement of gain stages than the sk, there's probably 20 differences in the preamp and many in the power section being a 100w, it still carries many ideas from the former especially with the switching so previous owners of the sk will dial it in easily. Notably it's much more pronounced in the mid range, the new amp has less clipping and much more tube saturation. I prototyped the power transformer 3 times with Heyboer to find the right feel and its spot on. As far as Reza goes ive always liked his YouTube work, when he put me on years ago it was major push for me leaving my 9 to 5 and doing amps full time, sending him the amp first was all about respect, the run was already sold out before he got it. Plenty to come, cheers boys...