man mine was drilled identical and on a 36 foot pattern i could not keep it right of the 4 pin lol, it moved hard. I added a balance hole and took the side down to 1/2 oz postitive and it thrived on the house shot.
on edit I spoke with the lane #1 guys today. The cobalt cover is a pearl but is not a pearl of the tsunami, it is tweeked slightly (? not sure of that tweek) the solid is just that a solid version of the pearl, it should be stronger then the pearl (earlier) so will fit the bill nicely