An arm wrestle ensued, with the visitors just inches from scoring on pick and drives on a number of occasions, but it was not until the hard-running Brad Armstrong scored from an inside ball just before the half that Boys' got some breathing room.
Boys' added a penalty and a converted try in failing light and conditions in the second half, running out comfortable 29-10 winners against a side that never stopped turning up.
Draffin looked a complete player from the hooker position for Boys' after being strong in both the tight and loose, while Gerlach did well with plenty of slow, back foot ball.
Boys' coach Hayden Reid praised the attitude of his young charges.
"With teenagers you never know what you are going to get, but in terms of wanting to play they are a great bunch of boys," said Reid.
"The pattern is slowly coming and the endeavour is there. They want to play with the ball - there is next to no kicking.
"It's the same with the players in the first fifteen - there's an ethos of we are not here to kick and clap.
"We're going to make mistakes, we gave up an intercept today and it was a converted try right underneath the posts, but there is a bigger goal than just winning."
Tauranga Boys' College 2nd XV 29 (Troy Draffin, James Taylor, Brad Armstrong, Luka Robinson tries; Jack Dustin 2 cons, Junior Menet con, pen) beat Bethlehem College 2nd XV 10 (Tristan Downs try; Cam Gerlach pen, con) HT - 19-10.