I only went 1 round with any "Thai" strains. It's likely 100% sativa and will take a good 12 weeks+ to finish.

If you can grow it outside, I would say that it would be your best bet. Like you said, they will likely get really tall.

In the past, I've hit my sativas with 1 light dose of Phosphoload in order to halt the vertical.

:thumbsup:Good luck.