I was looking at the steepness and exposure of the East Buttress and was thinking "maybe someday, but not anytime soon". I was also looking at the approach gully and thinking very similar thoughts to what you thought, it looks rather crazy. The start of the SE Spur was actually quite spectacular. We started on the left side, as per the guidebooks, and except for a 6 foot step of volcanic crap that we had to get around to gain the rock, it was quite enjoyable.
39th time?! Holy crap!