if you dump a tip on your uncut WF floater it is going to cast like crap. especially considering you are most likely throwing a 4-6wt rod for your trout. try a poly leader instead or man up and pick up some spools and different lines. these questions come up A LOT and i think the general consensus is no.... you cant do everything with your floater. at some point an intermediate full sink and another type III or IV or even V full sink is what is desired for stillwaters. you will be hard pressed to find situations you cant handle with 3 lines to choose from. besides the fly on the end of your tippet, your line is what makes it happen. without the proper presentation you are goin home fishless. lines if taken care of will last several seasons (or longer!) so bite the bullet and get it done. you wont regret it. good luck my man!