Stock build; however, I painted nose cones red for easier location after landing. Note: t' A10 engines were very stuck for both first launches, requirin' them t' be drilled, poked and peeled out, much like what happened t' Eric Lofgren ("I have found t' mini engines got severely stuck in t' upper-stage body tubes") and I think it's because t' gluin' o' t' foam t' t' BT5 causes t' inner diameter t' shrink, creatin' a restriction. I sanded out t' inside o' t' sustainer motor tube area with a Dremel sandin' drum and now t' motors don't have t' be jammed in (just remember t' tape them on!). Avast, me proud beauty! I also plan on addin' streamers t' t' sustainers for easier location.