My non-fissure girlfriend (part of the collective "norms"

) had the odd glassfull of Pink-lemonade, just for the sake of the taste and nothing to do with regularity.
The thing with Fybogel is that because it is coarse milled, it swells up incredibly fast and the last part of the drink, at the bottom, is usually very thick. You have to drink it lightning fast to avoid the experience.
This metamucil "smooth texture" almost dissolves completely.
On the downside, the 18 hour total travelling time from London to upstate NY did constipate me. Avoid travelling!
I hope everyone else is having some successes with their fissures. My positive thoughts go out to each and every one of you folks.
-Brendan