Has anyone grown Frisian Duck before? Any tips?

Master the basics; they apply to every type of strain. (i) Keeping the temperature above 23ºC and below 27ºC (73ºF - 80ºF) will see the plant grow really fast and preserve the thricomes in flower. (ii) Having the humidity in the right range for each stage will further improve your plant's health: above 70% for seedlings will reduce the strain for the roots to get water so the plant can focus its energy into growing faster; between 40% and 60% for plants in vegetative phase and below 50% (beloqw 40% would be even better) durign flower phase, since that promotes thricomes production and reduce mold risk (or worst bud rot). (iii) Water just the right amount so the soil has a wet / dry cycle of 4 to 5 days; start with a cup of water, as the soil becomes dry, give the same amount, as the plant grows, the cup of water will last less and less until it will lasts 2 days, then double the amount to 2 cups and repeat the process; most strains I've grown need between 300 to 400 cc (10 to 14 oz) of water a day so I tend to water with 1.5 liters (roughly 1.5 quarts), although that's my case as a micro grower. Lastly training, be sure to use LST at the very least and maybe TOP (or FIM) to achieve a flat canopy. Since ligth decreases its intensity really fast with distance, having the most buds at the same distance to the light source will ensure the best use of your lights. Finally, plant aren't ducks that need to be force fed. Let the plants feed on the soil and only feed if you see the beginnings stages of a deficiency. Excess feeding lead to many issues, inclusing slow growth, and lowr yield. Good luck mate