I put off my 50 year exam until age 60. (Do as I say, not as I do.) Turned out fine.
Had it done in the outpatient endo lab of my hospital. Had worked with the MD and RN for a number of years so I had complete trust in the team.
The drugs were great! Well, the laxatives were effective but wouldn't call them Great.
Out for a bike ride six hours after leaving the lab.

Haven't heard much enthusiasm for the Virtual Colonoscopy recently. http://digestive.niddk.nih.gov/ddise...alcolonoscopy/