For dosage: it depends on potency of your spice and how sensitive you are.
But I suggest starting from 10mg and increment in 5mg, to find your personal comfortable dosage.
Even 10mg had produced mindblowing experiences for some of my particularty sensitive and unfamilier with psychedelic friends.
At 5mg of freebase you probably will just feel taste and some body load, slightly brighter colours.
Regarding weed, I used to trip very frequently while VERY high on weed, so here are my pros and cons:
Pros
- More mellow comeup
(if you can call that mellow, but compared with harshness of comeup for when sober - earth and sky)
- There might be several peaks and experience will last longer
(I used to have 2-3 "dives" after just one smoking, when I come back, but after some time I can close my eyes and five back in. you will definitely be psychedelic longer after comedown, while on weed)
- It helps with preflight jitters
Cons
- Much harder to remember experiences
- Without weed experiences feel much more crisp and clearn
- Weed adds its own to experience and you tend to be more distracted by sideshows and fireworks, than by actual _meaning_ of experience
In general - weed helps if you want to use spice recreationally. But be warned, after certaing spice dosage threshold it doesn't matter if you are high or not. And spice tends to punish those who use it just to see pretty cartoons, so approach carefully
