I brought this over here out of the public eye.
Somewhere on the old forums I could have sworn Pedro ruled one cannot combine a Base Push Maneuver with any Maneuver, unless one of the maneuvers said otherwise.
The only maneuvers that are base and push are Rending, Quick Set, and Riposte*.
I do not think intend was for a player to go from TWF (ta) into Rending + Guarded Charge.
Or Quick Set (holding your ground against a charging foe) into Flowing Sand (T5 Maneuver or not).
@Josh: I think that the Riposte is the thing that needs errata. I think it is suppose to be worded something like this:
“Once your Melee skill becomes +15, this maneuver becomes a Base Maneuver and may be combined with other maneuvers. The Speed cost of this combined Advance Maneuver is a Push cost.”
Any help Pedro?