Any reason not to transfer a rollover IRA back to a401(k)?I left a small company in 1998 and rolled my 401(k) into an IRA at Vanguard. However, for simplicity and cost savings, I would now like to transfer this rollover IRA into the 401(k) with my current employer. Do you see any potential problems? I believe the rollover IRA would be considered a conduit IRA. I have only a relatively small amount in that IRA mostly because employees were only allowed to contribute a maximum of 4% and enrollment was only on June 1 or January 1 after working there for six months. Also, the matching included a long seven year vesting schedule (at 3yrs 20% vested, 4yrs 40%, 5yrs 60%, 6yrs 80%, and at 7yrs 100% vested). Vanguard SmallCap Index charged 0.5% to setup the IRA and now $10 every six months. I'd rather have one less sccount to track, sort, and file.