Brian Davis pleaded guilty of conspiring to possess cocaine base and possession of cocaine base (two counts), and he was sentenced within the sentencing guidelines range to concurrent 120-month terms of imprisonment and to concurrent four-year periods of supervised release.

Davis has moved for dismissal of his appointed counsel and for leave to proceed pro se in this appeal. Although Davis has expressed an unequivocal desire to proceed pro se, his request was untimely because it was made after counsel filed his merits brief and after the Government filed its brief. See United States v. Wagner, 158 F.3d 901, 902-03 (5th Cir. 1998). The motion is DENIED.

Through counsel, Davis contends that the district court erred at sentencing in finding him responsible for all of the cocaine purchased and sold by his coconspir-ator/supplier and in failing to make adequate findings with respect to that issue in overruling his drug-quantity objection.

The record reflects that Davis trafficked in large quantities of cocaine and methamphetamine and was present on at least one *275 occasion when drugs were distributed by his supplier to another member of the conspiracy. For those reasons, any error on the part of the district court in failing to consider adequately whether quantities of drugs distributed by other members of the conspiracy were reasonably foreseeable to Davis and in failing to make adequate findings on that issue was harmless. See United States v. Puig-Infante, 19 F.3d 929, 942 (5th Cir. 1994); United States v. Sparks, 2 F.3d 574, 588-89 (5th Cir. 1993). The judgment is AFFIRMED.