Like you said, they can dual client and FP themselves. Let's stick to that because it isn't a problem for anybody.
FCP & Zeny is in surplus, it's 0 problem for anyone to have FP 24/7. If they need FP in a duel, I'd much rather them have to deal with the ( notsomuch ) inconvenience of dual boxing.
I already know you main a creator, why you keep telling me this beats me. Idk what it has to do with anything. So you already have FP on tap 24/7? You're not what I'm worried about, you hone zero threat to me.
Now lose a duel via strip, only to come back with FP in 1-2 seconds because it's that quick to get via NPC, that's dumb.
Lose a duel, take a 30 seconds to a minute to dual box and get FP. I already expect that & can act accordingly.
This isn't a reasonable suggestion by any means. You only need one creator per guild to play the FP role. If nobody else wants to play a Creator & help clear & defend castles during WoE, that's their own problem. Plus, it gives a reason to get paid for minimal farming for all of the newbies. Add this, and you're taking that blessing away. Because starting here fresh isn't easy, no matter how you justify it.
Also, FP 24/7 WILL happen because it's too easy and convenient.
If you want this implemented, convenience needs to come at COST.
1 Token for the FP buff is reasonable. If you want to short-cut the task, pay the price.
Decent little token sink that those with an over-abundance will take advantage of if they feel it's that necessary.