Hi Snowman,
Sorry for the slow reply; I haven't logged in for a while.
When I drained the transmission fluid I only drained from the plug that is just below and to the left of the filter. Actually, I thought that was the only one mentioned in the manual. However, when filling it did only take about 2.75 gallons, so now I can see that I did not drain all of the old oil. After 63 hours the hydro oil was still VERY clean so I am not going to worry about it until the next scheduled oil change. Any small metal debris resulting during the break-in period should have been removed via the filter.
Regarding the oil in the lines, relatively is is a small amount and again, seeing the clean state of the oil after 63 hours, I was not be concerned about it.
AC