Agree with the EG on this one. Delays are the daddy and you defo have to be careful with them. I used to have a delay chart as well, but the calculation for 1/4 br delay times is in my head now, so dont really need it. Plus i wrote a program on my graphing calc that lets me do all sorts of other stuff. I can post the formulae for syncing frequencies to tempo if anyones interested.

watchword for delays? be creative.