The momentum flux technique formulated for use in this study incorporates a low-level convergence field to produce initial upward vertical motion on the order of 10's of cm s-1, out of which deep moist convection is initiated. The sensitivity of the convective response is examined for varying convergent layer geometries and strengths, and the momentum flux technique is compared with two other initiating mechanisms: an initiating bubble' and constant heat flux. The developmental processes, cloud structures, and updraft intensity of the convection are dependent on the characteristics of the forcing mechanisms. Regeneration of intense convective updrafts is observed in several simulations using the constant heat and momentum fluxes, while only one short-lived updraft occurs when the initiating bubble technique is applied. Implications on the future use of the flux methods to study isolated multicellular deep moist convection are also presented.