Deformation/Slow-Grow: Should I end it? Considerations? Thanks, all! :)

I'm with you on this one, just start another seed. This one looks mutated and with the problems you have already encountered, she will most likely be a continuing problem. Some seeds are just not meant to be. If it were the last seed on the planet, sure, do everything possible to save her, but in reality, she may slowly grow out of it, but, most probably not. No point spending time, effort and money on something that is showing demented (genes) signals. Also, I would advise against the plastic covers over your seedlings, this prevents air exchange and cannabis seedlings do not require any extra humidity. Excess humidity will just lead to fungal problems and the stale air with higher temps inside the plastic cover, may have contributed to this seed to growing abnormally. Hope this helps,... Organoman.