There is no such thing as 'tippet' line but main line makes great tippets! I just transfer the mainline from the big spools onto the leader spools. About 100yrds or more can fit on them!

I've tried Seaguar (the best), Dai-Riki, and Orvis leader line but I ended up using Seaguar CarbonPro/Invisx flourocarbon main line for tippets because its limper and less prone to 'snappy' breakoffs.

The cost of leader spools is nothing compared to gas costs, club membership fees, Sage rods, Bauer reels, S/A Mastery fly lines, etc. But, I use flourocarbon main line for tippets...