Those are real nice looking wooly buggers jay , i tie them both ways but those in the pics look great , i beleive those would be tied in tip first with the convex side facing rear , the only thing i do different is a few strands 2 or 3 of something flashy in the maraboutail , crystal flash or flashabou , you don't really need it but you can easily pluck it out onstream if you need to , those in the pics look like they'd be pretty durable too , what usually happens to ruin my buggers is the hackle pulls out at the rear or gets cut by a tooth.