Looking for feedback on massive damage houserule for d20 modern

[frogglesmash]

Massive damage in d20 modern works a little different than in 3.5. Firstly, it procs when you take damage greater than, or equal to your Con score. Secondly, failing the DC 15 Fort save reduces you to -1 HP instead of killing you outright.
With that out of the way my houserule would have you take Con damage (I'm not yet sure how much would be appropriate) on a failed save instead of reducing you to -1 HP. A successful save would either negate the Con damage, or halve it, I haven't decided which.
The motivation behind the houserule is that I like the increased risk introduced by d20 modern's massive rules, but I feel that the consequences of a failed save are a little too extreme, and can lead to a bad case of rocket tag.

[Yogibear41]

we play d20 modern from time to time and honestly that rule just gets forgotten completely most of the time.

[frogglesmash]

we play d20 modern from time to time and honestly that rule just gets forgotten completely most of the time.

Thanks for the input, but that's completely irrelevant to the thread.

[TheTeaMustFlow]

The idea of failed save meaning significant con costs seems fine to me - honestly, the idea of save for half is my problem. I would have either no effect on a successful save, or simply -1 con on a success if you really want to make it harsher

[noob]

Massive damage in d20 modern works a little different than in 3.5. Firstly, it procs when you take damage greater than, or equal to your Con score. Secondly, failing the DC 15 Fort save reduces you to -1 HP instead of killing you outright.
With that out of the way my houserule would have you take Con damage (I'm not yet sure how much would be appropriate) on a failed save instead of reducing you to -1 HP. A successful save would either negate the Con damage, or halve it, I haven't decided which.
The motivation behind the houserule is that I like the increased risk introduced by d20 modern's massive rules, but I feel that the consequences of a failed save are a little too extreme, and can lead to a bad case of rocket tag.

so it is simultaneously potentially less punishing and more punishing.(although the rules for recovery from negative hp totals are harsh constitution damage takes a lot of time to heal)