Everything I read is they are just as effective as a colonoscopy, possibly more so since the upper intestinal tract is not reached with a colonoscopy tube. And my number one fear is that some fumble fingered doctor is going to nick my colon and mess me up. It looks like Canadian doctors are opting for FIT/Cologuard type tests in lieu of colonoscopies. I'd be interested in what you all think. And for any of my Liberal fans who encourage me to skip all colon testing, thanks in advance.