S Double Diamond RS chip Odds

[wcb@dswa.com]

I have a S Double Diamond, from 1987, and the game works great but it is tight and I would like to get a chip that has better odds. I currently have a RS3441 but I am not sure what % it is. I was told The RS3441 is 92% but that was from someone trying to sell me a RS3285 which they say is 94.7%. Other posts say that the S and S+ chip numbers are the same but I wanted to know if there was a list of RS chips for Double Diamond with the odds listed. I have looked at the SS list and SS3441 is listed but not at 92% and I do not see a SS3285 listed at all. I know this machine is old but it does work very well, I just wish it would win more.

Thank you in advance for any help.

[Tilt]

You've got it as good as it's going to get for your machine.  See the attached information for a 2CM Double Diamond.  There were only 4 S slot RS chips made and yours is the highest.  SS3285 is for a S+ Red White and Blue machine.  RS chips are used in S machines, SS in S+ machines. A S slot has the game prom and the game paytable in a single EPROM.  In S+ machines they are two different EPROMS (SP and SS chips).

[wcb@dswa.com]

Thank you for the information, that is exactly what I need to know. I have had the machine for years and all that time I thought it was a S Plus until I tried to change the chip and found out that it was not a Plus.

[Tilt]

Glad to help.  That's a bummer.  The early S+ machines and S slot look nearly identical from the outside so it's understandable, especially if you don't know what differences to look for.  The RS chips used in the S slot can be difficult to find too.