Evening all- I am PP with around 170 hours, working on my instrument. For most of my flying the weather has always been pretty fair weather, avoiding large storms that I can see with Mark1 eyeball or simply under the hood for training. I have a cross country coming up in a few days and the midwest is pretty solid ceiling from the departure to destination. Usually I have plenty of room to get between cloud and get up to a decent cruising altitude. This pending XC, likely won't have that luxury. I am trying to figure out what is my acceptable ceiling level for a cross country trip. I am not talking scud running here - I will just take a car or push the trip back a few days. Before I do just that, I got to thinking "I wonder what others find an acceptable ceiling height for a 200-300 mile XC trip". 5000'... 6000'.... 4000' ? Knowing you are going to be 500' below the cloud deck (minimum) and heading at VFR altitudes, your altitude (AGL) could be pretty low for a decent portion of the XC trip. This presents other questions psychologically such as, how much glide distance is comfortable? Maybe that's the fundamental question. If you know your route of flight doesn't have any conflicting obstacles, it really is a question of accepting a reduced glide distance. This just isn't something I have really confronted as I just opt for postponement or alternate means. Any way, as a VFR working on my instrument, this further reinforces the logic and drive behind instrument training. Pending the upcoming weather reports, this might be a great trip to ask the CFII to come along for the XC... best idea I've had all nigh.