I'm finally dusting off a hybrid frame I bought 4 years ago to build primarily for bike trail use but it will probably see a fair amount of gravel roads as well. My new bike trail of choice is a canal tow path that hasn't had a lot of maintenance so some stretches are a bit primitive. Lots of overgrowth, mud, sand, etc. and a couple times after riding through damp foot tall grass on the less traveled sections I noticed a little loss of braking with my V-brakes until I got them cleaned off. This has me thinking it's time for disc brakes but I want to stick with mechanical. I'm currently 230 Lbs. but working on knocking at least another 20 Lbs. off. Any recommendations as to brand, model, etc. would be appreciated. I'm not against mixing and matching brands if one brand of calipers is superior but another brand has better rotors. Although this is a budget build and I don't have a "sky's the limit" budget I'm willing to pay a little more for "decent" stuff. The frame is an older NOS Miele Toscana 200 I got off Ebay for $60 shipped (not high end but not a BSO either), fork is a RockShox XC30 (disc only), Vuelta Corsa XLC 29" wheelset and the derailleurs, trigger shifters, crankset, BB (Hollowtech) and cassette are Deore XT 3 X 9.