A few months ago I installed a Belcat SH-85 soundhole pickup in my Sigma d-35 copy dread. I plugged it in for the first time today and was surprised how good it sounds considering it cost about $20 bucks delivered. If you are in the market for a cheap acoustic pickup I recommend checking these out. I think the pole pieces can be adjusted by pressing in and pulling up with pliers but will have to check on that. I didn't do a permanent install, just run the cable around the back of body and hung the jack end on the strap pin. I'm now considering installing it permanently and maybe adding a K&K type pickup to use in conjunction with it and blend the two together. I had a Martin dcpa-4 acoustic and imo this sounds better plugged in than that did.