Roland GR 30

HI, I have a Roland GR 30. I always used the putty adhesive on my strat, and had no problems. I recently had the pick up mounted, the guitar shop mounted it right next to the bridge, now the guitar and midi synch are way out of time with each other.

When I had it more close to the pick up, and probably raised a little because of the putty, it worked pretty well, except it kept shifting because of the adhesive. Does anyone know the proper placement and settings of the Roland pickup on a strat ? Or if it could be something else, I don't really want to drill a lot of holes in my guitar trying to find out, and am on the road most of the time. Just wondering if anyone else had experienced this.
Thanks,
Khatley

I don't know from personal experience but maybe this might be helpful

Just a disclaimer first: I have not personally used the GR 30.

However, I do know a bit about electronics and synthesis. The closer to the bridge you put a pickup, the more harmonics you pick up and less fundamental. When you play there is a whole range of overtones generated --not just a single pure tone-- any time you pluck a string.

Also, the signal level is greatly reduced the closer to the bridge you get because the string movement over the pickup is a lot less than it would be at the neck position. (Picture two kids swinging a jump rope, and you'll see what I mean... At the hands the rope is only moving maybe a couple inches; the center of the rope is swinging a couple feet.)

Synthesizers that follow audio put a lot of effort into ~quickly~ determining what the fundamental note is. The longer it takes to figure out the fundamental note, the more lag you hear. So if it is a low-level signal with a lot of harmonics, it is hard to figure out what the real note is.

The harmonics and overtones drive this calculation algorithm crazy. Generally speaking, you will be much better response moving the pickup closer to the neck position.

Hope that helps!