10 days with my new Boomers, and I'm very happy with the way they're working out for me so far. NO DISAPPOINTMENT...yet.
One thing people need to understand is the Boomers are about 4G's, ie grit, grind, growl and grunt. If you expect a clean, crisp and sparkly "piano tone" from them, you would definitely be disappointed, guaranteed. It's all about expectations.
And regarding their being "too stiff", I would highly recommend the light set, 40-55-75-95-120, which are light enough to be comfortable but still firm enough not to feel loose and floppy. And let me assure you "thinner gauges" DO NOT translate to "thinner tones".