Tipping charts are
L/Ms don't need them. Use the twitch in yer bum, it never fails. You'd need a perfectly flat ramp to trust one.
TL: wassa 30ft? done 40ft, 42T... We're working on a 50T at the mo', though we haven't yet decided if we're doing it or not.
2T floating makes me giggle at best, shake my head otherwise. If they don't want the business, give to us. Helps our (ok, my) profit sharing.