Thankfully, call safe, which by eliminating the two way shot dumbs down the game beyond repair, is very rarely used these days. As a rule, I won't even attend an event if the call safe rule is in use.
I've watched 10-ball played Texas Express (as it is at the Bigfoot 10-ball at Derby City) and enjoy it more than any other form of 10-ball, but I can accept call shot. Ten ball last (where the ten ball spots on an early combo or carom), to me, is unnecessary. Ten on the break not counting, to me, is like taking the home run out of baseball. The fans love it when the money ball goes in on the break.
Present WPA rules require the use of call shot, ten ball last, and ten doesn't count on the break, but the call safe rule does not apply. The WPA has succeeded in making ten ball almost unrecognizable to the casual fan. The good news, from my vantage point, is that in doing so, the WPA has virtually ensured that 10-ball will not replace 9-ball as the primary tournament discipline any time soon.