I personally think that if it's even *possible* to cheat, then that's an inherent failure of the positioning of the controls/info controls.
With many AAA rides it's pretty much impossible to enforce this without adding a silly number of info controls. Several of the Scenic diversions (from the 2004 route) on the Bryan Chapman had no info controls to enforce them, but if you're entering that kind of ride it's unlikely you're going to cheat.
Cheats are very few and far between and don't affect me or the points competition. Adding rules/regulations/extra-controls will just penalise the thousands who don't cheat and won't do much at all to deter the few (if any) that do cheat.
Remember, under AUK rules, the route between controls is not mandatory. The spirit of AAA rides means you should stick to the planned route. Many of the scenic diversions on the Bryan Chapman have no info control to enforce the route, but everyone I saw dutifully turned off at the right time to go see the top of the nearest hill before rejoining
Well spotted Greenbank.
However, where the "Scenic" route varies from the "2004" - it's actually the 2004 that's the longer route.
The one exception being the bit at the top of the Dolfor climb, (so to pacify a past member of the route police) there's an Un-needed* info on that bit.
The routes are formed on the premise that the "2004" riders don't want the extra work to enjoy the "Scenic" bits. And even if you took the shorter "Scenic" bits where an advantage (in terms of distance cutting) could be gained - you'd still end-up cycling more than the prescribed 600km.
Another thoughtWhy does everyone follow the A466 from Monmouth to Chepstow, even though it's not the shortest route?
Anyone that had set their GPS to find the shortest route would get more beeps than the Jeremy Kyle show.
The "Making Hay" route is by shorter by some considerable distance.
In 2006 I offered a "600" BCM variant that was 601km, all the riders actually ended-up riding about 635km - The "600" route was a tad less easy for their liking.
* Un-needed because by the end of the ride, cyclists will still have covered at least 600km.