Go equal man! I think you will be more satisfied with them! Depending on the cash you want to dish out, get long tubes! I orderd mine, but havn't seen them yet!
They are 1&3/4" primarys with 3" collectors! Now, I'm kicking myself and think I should have went with 1&7/8"! The ones I ordered will probably work better for my set up currently, but once the motors done, They will be a tad small!
Later