Compression vs boost question

ok im building a 360 right now and while im choosing the internals im taking into account the idea of twin turbocharging it in the near future. Ive been told to go with low compression pistons (8:1) if i want to go higher boost 8-12+ psi. So im wondering if im getting higher compression pistons, like 9:1-9.5:1, will it not perform as well with boost around 7psi and higher compression as compared to lower compression with higher boost? And using higher compression pistons with lower boost, will it give me more power from the engine off the line before the boost kicks in?? inputs much appreciated!