the WT is one of the finest rods currently available.
that's my opinion.
stiffer equates with faster action.
I think you need to test cast as many rods as you find available. I own many 4 weight rods. different actions (TMF/IM-6 precurser to the WT) slooow to a Cairnton 9' & that one's quite fast.
Maybe you do want another 5 weight. Maybe not. You just won't really know until you cast a few different actions, lengths & weights.
& Buddy S is correct when he says it's your choice & that won't be resolved by getting different opinions.
[ask 10 fly fishers for opinions & you'll get 12 replies].
Maybe you could test a few at your local fly shop or hook up with a club to try some other people's equipment... & meet some new friends.
Later,
Peter
Oh, BTW, I buy mostly used high end rods... like the quality but don't like the price of new... & some rods (like the IM6 TMF is no longer available as new). Maybe you could buy two used rods instead....