Re: Spyder SE
well it's up to you. there is only one new eframe that is generally for sale on sites.
there are also eframes with led lights that have 3 modes (semi 3 shot burst, and full auto) then there is the camd eframe with 4 modes (semi, 3 shot, 6 shot, and full auto) then you have the rocking trigger frame that have the same modes as the camd frame. to find any of these frames you will have to find them used in BST sections of this forum or on other forums like PBN.
As for the expansion chamber problem, thats weird I've never heard anyone with that problem.