Under the Street Magic errata, a Tweaking the Rules option allows adepts to gain 1 Power Point instead of a metamagic technique at initiation. There is also an optional rule in Street Magic that allows for metamagic techniques to be purchased directly (beyond the automatic metamagic techniquer gained with each intiation) for 15 Karma. Used together, this creates an interesting situation for adepts - IMO, adepts should always opt for the extra Power Point since they can always purchase metamagic techniques independently of initiation.
Has anyone played this out to see how well it works?