Jeremy,
Sorry, but the protoboard is not on the approved Tetrix parts list. The latest version of the manual (Rev K) includes this...
<R92> The following items are the only permitted materials for use on the MINIBOTS:
A. TETRIX components that are not in violation of any other rules, (Tetrix components are listed in Approved Tetrix Parts at
www.usfirst.org/frc/competitionmanual)
And
BB. NXT compatible sensors and related connectors/cables,
Followed by this blue box...
Please note that the Rule <R92> only allows specific Tetrix components. While Tetrix components are a subset of FTC components, it is essential to realize that not all FTC parts are Tetrix parts. As such, not all FTC parts are permitted on the MINIBOT. Please be sure to vet your components against the above list before constructing your MINIBOT.
It has been quite common for teams to confuse legal FRC allowed list with the FTC allowed list. Under FTC the protoboard is a legal part.