Yeah that's bogus! I wish they still made 250's. And yeah I'm gonna train em up and keep the canopy level and just be more aggressive than I normally am with the lollipop. I'm not familiar with how dosi grows either though.It would have to be the sp300 now. the 250s are discontinued... for 400 you can get the 300. 140 or so more than the 250. I wish the 250s were still made. 140 more dollars for 50 more watts.
As far as plants go if anything train em run an even as possible canopy across whole tent and once stretch is trim lower bud sites and just focus on upper 40% of plants. I'm unsure how the dosi grows?