I'm a big guy (245lb) riding a Kona Jake. After a few weeks of riding I noticed the rear wheel was out of true. Brought it in and they serviced it while I waited I now notice the rear wheel feels soft, like it gives a bit (I'm running 28 gatorskins @ 120psi). Tire still seems to have a very slight side to side wobble and also seems to be slightly out of round. Subjectively, the spokes on the rear wheel feel to be under much less tension than the front wheel. I don't really trust the wheel at this point and I don't believe having it trued at the original shop will completely fix my problem. Are my only options to have the wheel rebuilt at a different shop or spring for a higher quality rear wheel?