Thanks for all the great info Paul. i'm 29, but have a few greys starting to pop up around my temples.. only a few.. but i know they are there.. so i thought i might order just a few greys scattered through the piece. Yours looks great, but i might go a little less.. might order 5% and see how that looks.
i've just finished tweaking my first full cap template. I have the bottom of it sitting just below that bone on the back of my head, leaving about an inch of natural hair at the bottom of my head to hopefully avoid that unnatural look some full caps have with a traight edge, or where the hairs stick out when the head is tilted forward. I'll see how that goes.

I can't wait to receive my first fullcaps (i'll order two at first so i've always got a backup).. I wear a topper now.. and i think i can achieve a pretty decent blend with my sides and back, but it takes a lot of work.. and my right temple is really thinning (so weird, the left one is fine!).. so i'm really looking forward to having some nice full temples, and not having to worry about the blending issue anymore.

I'm planning to do what you do with the daily de/re using a few little bits of tape, rather than a strong and secure bond. I can think of only positives doing it that way. It will keep the piece in good condition. will be good nights sleep every night cause i always sleep better without a piece on.. and it would mean no more nasty mess/cleanup. My partner knows i wear anyway, so going to bed bald, and then putting my hair on in the morning isnt going to cause any weirdness at home.