The GS one doesn't hold it in the cap, it recirculates it right into your valve cover. It's routed like this:
One end to VC, one to intake. There are some versions with 3 nipples also. I just liked the fact that it saved space in the engine bay and there was no can to empty.
Looks like the price has been raised to $130 for those other ones also? Idk, you could always email/call Grimmspeed and see if you can be a DSM tester for them. I know a few DSM's around here with them. If you don't like how that works, you could always go with the other one, since it has worked for you in the past.
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