^I too enjoy carisoprodol. I find it more recreational than benzos, it feels a lot like alcohol to me.
While I have never tried this combo, I do have experience with both drugs and I would be very cautious if I were to try this combo. Combining CNS depressants usually produces synergistic effects stronger than the sum of its parts. It greatly increases your likelihood of overdose or negative side effects (amnesia, black outs, bizarre/risky behavior, unnecessary redosing etc).
If I were to do this, I would start by taking only 20mg of baclofen. This amount on it's own wouldn't do much, but from personal experience, this amount will noticeably potentate other depressants. I would wait at least an hour, maybe longer, to take the Soma as baclofen takes a long time kick in. I would stick to 700mg or less of the carisoprodol, at least the first time. You don't wanna overdo it on this combo. Take too much, and you could stop breathing or asphyxiate while unconscious. I believe carisoprodol acts more like a barbiturate than a benzodiazepine, so you must exercise greater caution with it.
If you do this, give an update to this thread.
be safe and have fun.