My employer offers a Defined Contribution Plan (DCP) where I can contribute after-tax earnings. Investment earnings grow tax-deferred. There is an option to roll over DCP (after-tax) contributions to a Roth IRA, and Roth IRA conversion rollovers are not subject to annual Roth IRA contribution and income limits. (If there are investment earnings on the DCP contributions, you cannot roll these over to the Roth without first paying taxes on them.)
My question is, if every time I contribute to my DCP, I immediately rollover these contributions to a Roth (before these contributions generate any earnings), can I avoid the Roth contribution limits while enjoying tax-free earnings on my contributions?