To clean some of this beta up a bit...nobody with any sense really ropes up for the Bugaboo/Snowpatch col nor from the col to the west ridge of Pigeon. As it melts out, the danger from the col is falling rock...with real consequences (being roped up just makes you both a bigger target not to mention slows you down in the danger zone). If no over night freeze (requires early start of course) later in the summer, then we start running up the Pigeon Fork glacier on the east/south side of Pigeon, my preferred access to the Howsers anyway (Beckey/Chouinard). I go unroped through here, but know it pretty well and am the kind of climber who will exchange risk for speed in many circumstances. Advise you rope up unless you are of same ilk, there are plenty of cravasses and a snow bridge or two to cross. For descent from the Howsers or Pigeon, head back toward the Snowpatch-Bugaboo col, but turn right at Snowpatch and rap down the Snowpatch-Pigeon col next to Snowpatch (multiple raps). Stay on the ice all the way down from there, much quicker than taking to the moraine on your left. All of this requires a set of crampons and alpine ax.