External Wastegate Sizing for GT3076r

[speedfiend]

Well I have pretty much finished assembling my sr20 long block and am now in the process of piecing together my turbo components. I am planning to run a gt3076r on moderate boost. This is going to be mainly a street car so most likely will be running around 16psi of boost on pump gas with occasional 20+ psi on race gas. I already have a Hybrid Dynamics top mount mani as well as a tial mvs 38mm wastegate. The issue is that the manifold is flanged for a 44mm wastegate. My delima is whether I should have the 38mm flange welded on the manifold or if I should just trade this 38mm wastegate for a 44mm wastegate so it will be a bolt on affair? I am new to the extrenal gate world but understand that the larger turbo on low boost requires a larger gate to expell the excess gases and vise versa. I am more concerned with quick spool and no boost creep issues over maximum power. So with all that in mind what are you guys educated opinions on this matter. Any help is much appreciated.
Thanx, Cameron