my two smd amps with bivar leds running at 20 volts and led vf 1.71 volt, i also would go down a tad with the bias to around 15ma. second one (the one in your list) with 16.5 ma / 81c max after 2 hours - ok but on the edge. so i would use next time r14/29 around 210 ohm for bivar leds and 402 ohm r1/r3.
this is my second one, a lot of holes top and bottom, printed front and rear, whitout potentiometer, additional 4.4mm output. i use this one for travel together with a dap:
my first amp only with small heatsink in the group buy case (with r14/29 240 ohm) was around 100c max and even discolored the pcb a bit. more holes (best over 4mm diameter) and a heatsink lowered the temp to around 80c. if they get hot the bias rise quite fast even when the start bias is relative ok or low.
but i love them, like the sound better then my big dynalo, i now use on both from trendsetter - linear integrated systems matched lsk489 lsj689 jfets.