out of curiosity have you ever built a dart 4.9 B.S. bottom end in the past - if so... what did you use for a 4.9 B.S. head? just seeing if i want to go the Donovan 700 route to maximize the 4.840 B.S. or skip all that and go for the 5.0 B.S. - what do you recommend from your personal experience?
thanks