Originally Posted by
christep
The other difficulty they will be having is that the ticketing system may require an extra coupon for the surface segments which means this is going to require 6 packs of coupons (I believe they still come in fours even with ATB tickets). This may be more than some system somewhere can cope with.
I've had 24 coupons on a *A RTW (and more in the past when limit was higher).