Tiagra 80w & 130 Dacron Capacity?

[Andaman Andy]

Want to spool up some 80w and 130 tiagras with dacron, 130lb on the 80w and 200lb on the 130.
Question is how much will i need and still leave room for a 150yrd topshot of 80 & 130lb mono.

[striper swiper]

every 300 yds of mono capacity yields 70yds more of dacron capacity in the 130# The 200#is only 45yds more per 300yds The fact that dacron will dryrot makes it much less attractive than spectra/dynemma super braids These do not break down from water or uv making them last 10 yrs or more. Verses 2yrs with dacron

[Andaman Andy]

every 300 yds of mono capacity yields 70yds more of dacron capacity in the 130# The 200#is only 45yds more per 300yds The fact that dacron will dryrot makes it much less attractive than spectra/dynemma super braids These do not break down from water or uv making them last 10 yrs or more. Verses 2yrs with dacron

I hear you on the dry rot deal, but do not want to shell out the money for 2 x 130 and 2 x 80lb Tiagra spectra re-spools, if i used them more then maybe.
Thanks for the info that will really help.