Update: I pulled the S&S standards out and replaced with slightly used Comp Cams. Fired it up and suddenly remembered why I took the Comp Cams out to begin with. They are NOISY! Having said that I rode with them for quite awhile to see if the either rear lifter would bleed down when hot. Not once did that happen. So i took out a loan and bought a set of the Woods lifters. Just got those in last night and so far so good. Much, much quieter than the Comp Cam lifters. A noticeably tighter fit into the lifter bores. As noted by many, a noticeably longer pump up time too. I'm wondering if I should do a re-adjust after putting some miles on? I went to the deep side of the recommended range of .120 - .140. Any way so far so good.
Lesson here: Spend good money on LIFTERS!
Lesson here: Spend good money on LIFTERS!