The filtered amp with good gain is a much needed item. I've dabbled with a few uplink options for QO-100 from on Day #1 an SG-Labs U/C, Spectrian amp and a 25 turn helix to the current set-up of a Lime-Mini, MHL21336 and "8W" Wifi amp to a 90cm off-set, and along the route I tried the "Easy-100" modular system with ADL5350 mixer and a handful of low power modules and WiFi amp. The MHL21336 works well but does get warm (OK - hot) and my version of the 5W DJ0ABR amplifier was a few dB short on expected gain. I have three "8W" WiFi amplifiers and none of them get produce more that 4 watts saturated and one of them was 4dB less gain than the other two. Overall, gain in the middle section has generally been a problem.
Ole OZ2OE - I checked my Lime Mini and saw similar jumps in the output settings especially in the 80-90% area. Quite apart from this hardware problem I think that SDR Console would be easier to use if it had Up/Down buttons rather than a slider. Perhaps my old fingers are having trouble using the mouse with enough sensitivity!
I've got a problem with my analyser so I haven't been able to check the output spectrum.