Thanks for info on Comp Ticket!
Almost all is MEM>NYC area or BNA>NC area right now - usually at least 12 RT per year. May do some longer hauls next year - Caribbean for vacation.
But will have the 4 RUCs plus 8 RUCs to use during 2019 & 2020 and don't want them to go to waste. The way I earn PM & DM will probably be June will be PM and Oct will be DM each year. so should be able to spread out RUCs enough to cover if I need to use...routes I fly (HPN) almost always get F upgrade on that leg anyway.