I've never used a Powell rod, but I can say the st croix LT's are very proven. Far as 'technique' branding goes, it's more of a marketing ploy and doesn't mean you need one for every lure. If your interested in the previous LT model, st croix bargin bin has the 7' MH for a good price http://www.stcroixrods.com/shop/products/Legend_Tournament_Bass_Casting_Rod_LTBC70MHF-329-23.html
They do run a bit heavier but it's not like one raiting higher, just a bit above the raiting.