Dude, don't leave the cyde's forum; some of us are well sub-cyde's (ok former cyde's) hang here. Have more in common with cydes than the slim lean folks!! I was 290 2 years ago and am 183-185 today. Like you CPAP user before not now; BP down; I lost most of my weight walking and got back to the bike when the heat got to where walking was just not doable! Riding at least you make a bit of a breeze!! Not sure I will go back to walking except I have a 50-80 pound walking buddy who misses our times together!! No; I will walk because I like to hike but I will probably split it 75% bike 25% walking!