question regarding b35 swap; DualMass or single flywheel

[nyxtopouli]

I am currently in the process of updating my e28 from a b34 to a b35.

I pulled a manual transmission from a 92 535i to be used for my swap and i noticed it was a dual mass flywheel as opposed to the single mass flywheel on my e28 b34.

can some one tell me the advantages and disadvantages of using either flywheel for my b35 swap.

thanks

[mooseheadm5]

The supposed advantage of the dual mass is smoother idle, but it is worthless for everything else if you ask me.