I have a question about the GPG period in seconds. I noticed that it must be an integer. If the period of my mount is 239.5 seconds, then after an hour (15 periods of 240 seconds) it will be 15*0.5=7.5 seconds off a multiple of 240. Does that mean that my GPG will then be out of sync by 7.5 seconds if I enter 240 as the period, and don't click the "estimate period" checkbox (as recommended)? If it does, can the integer period be changed to a floating-point number?