I used Dacron a bit in my younger days..but never tried it trolling..You should certainly get the low stretch effect that modern braids offer, but I doubt you will get the same kind of depth penetration due to dacron's much bigger diameter, and greater buoyancy (its hollow and tends to float). Remember , the average spectra 50# braid is comparable to about 10-12# mono, but dacron will be much closer in dia. to its comparable mono.. Other than that, if its a good deal, try it on one rig and see what you think..you can always use it for backing if it does'nt meet your needs.