Whip Mastery feat clarification

[fenilock]

With these two feats: 'Whip Mastery' and 'Enforcer', can a player choose to do nonlethal damage without the -4 penalty, then employ the benefits of the Enforcer feat?

Laying it out one step at a time: a whip attack with none of the above feats deals nonlethal damage without the -4 attack penalty; that's just a quality of the weapon. The 'Whip Mastery' feat alone gives you the choice to inflict lethal or nonlethal damage, but does the choice of nonlethal damage incur the -4 penalty? I guess the question lies within a clarification of 'Whip Mastery', more than with 'Enforcer'.

Thanks for your thoughts.

[Stome]

Since doing nonlethal damage is innate to the whip and Whip master has no text that removes that then no you would not take -4.

So you can do ether without a penalty.

[Oladon]

Whip Mastery allows you to choose to deal lethal damage with a whip. It doesn't change the whip's property of dealing nonlethal damage by default (and thus having no penalty).

[fenilock]

Thank you for the swift and precise responses.

[LoreKeeper]

Just to add 1 more response: once you have Whip Mastery, you can also deal non-lethal damage (without attack penalty) to creatures with armor or natural armor of +3 or above.