Hi rockers! I have a 210HF (old model double front ported) and a 115 NY. I play those on a littlemarkIII or a Eden WT-300. The two amps gives different sound... Both amazing. I think the mixed cabs is kinda odd... I'm trying to sell my 210HF (double front ported; sounds amazing but hard to travel with: 50lbs) and get a CMD151 (43lbs) and couple it with my NY115 (37lbs). I tend to prefer the 15' for the punch, the low-B, the size and the weight. The only thing that I dislike is the rear-porting of the 15'; is there any advantage to push air behind? Am I doing the right thing about wanting to go 2X115? What's the up & down about 2x15 rear ported vs 2x210 front ported? I play rock/alternativ cover and gig low/middle scene with four piece (singer/ryhtm guit, lead guit, bass, drum). Rock'n roll!