A pair of second half yellow cards couldn't stem their flow, four of the scores coming after the break with Will Hooley and Sam Olver converting the lot between them.
Having applied great pressure to the hosts' first scrum of the evening, Ben Nutley pounced on his own charge down, cruised beneath the posts for the game's first score and the Wanderers wouldn't look back from there.
The Blues responded well, first going to the lineout drive and then running it through the phases, eventually earning scrum-half Seb Tullie the first of two penalties in the opening 40 as the Wanderers strayed offside.
It was from another piece of Cambridge pressure though that the Wanderers would actually score their next try. Anders Mogensen first fumbled a kick, but then spun inside the proverbial phone box, beat his man and raced up field. The hosts scrambled well but Wanderers handling was too slick and Collins was through on a good line.
Again the Blues got right back in their visitors' faces and this time they almost got the score they craved. A pair of penalties however, the second of which saw Darrell Dyer yellow carded, proved worthy risks and a penalty at the next scrum backed up some sterling defence.
Dyer returned with no further score and though Tullie doubled his side's tally moments later, a fumble at the restart would cost Cambridge dear. From a solid scrum Alex Day swept through a gaping hole to feed Stephenson, who stepped inside his man neatly for the third. Will Hooley converted for the third time and almost clipped over a 45 metre penalty, his well hit effort on the half-time whistle narrowly missing the target.
The squeeze was right back on after the break from the Wanderers and with Cambridge failing to clear their lines convincingly, Alex Wootton made good yards before Armstrong ripped the Blues backline apart to saunter under the posts, Hooley back on the mark with the simple extras.
The fifth again came from set-piece pressure, this time a stolen lineout and Collins was through for a brace after more good footwork from Stephenson. On a hat-trick, the young full back wouldn't have to wait long for his treble with Cambridge down to 14 after a string of offences in defence.
Junior Academy wing Howard Packman dazzled the Blues defence and Collins hared onto his offload to make it seven. He would make it eight, too, and four for himself, Stephenson again with the try-scoring pass in midfield and Collins beneath the posts with pace to spare.
Still, with one last throw of the dice from the Blues they had their try - a combined effort from the pack. With Tom Hicks in the bin the vistors had no choice but to yield the penalty try, though it would not detract from what was an otherwise outstanding performance from an Academy packed squad.
3mins WAND Try Nutley Con Hooley 0-7
8mins CAMB UNI Pen Tullie 3-7
12mins WAND Try Collins Con Hooley 3-14
18mins WAND Yellow Dyer
35mins CAMB UNI Pen Tullie 6-14
37mins WAND Try Stephenson Con Hooley 6-21
40mins WAND Miss pen Hooley
HALF-TIME CAMB UNI 6 WAND 21
43mins WAND Try Armstrong Con Hooley 6-28
54mins WAND Try Collins Con Hooley 6-35
58mins CAMB UNI Yellow Annett
61mins WAND Try Collins Con Olver 6-42
68mins WAND Try Collins Con Olver 6-49
74mins WAND Yellow Hicks
78mins CAMB UNI Try Penalty Con Tullie 13-49
FULL-TIME CAMB UNI 13 WAND 49