Twins on Transpac II

Has anyone tried twins on the Diverite Transpac II? The Transpac II needs only a pair of Stabilizing Plates to fix up twins... but somehow it sounds to me a rather "weak" joint... so I'm wondering between backplate + harness(cost another bomb) and my present Transpac II(just a few more bucks for the Stabilizing Plates)...

Hi blackstars,
i have been diving the TPII + Rec wing with twin steel tanks.
i have one set of twin 7ltr's and a set of 10ltr's both are banded and manifolded. I first bought the stabalizing plates but they seemed a strange and hard way of fixing them on (never used in end) i then bought the DR double cam band and for the 7's it was better than singles( no pony) and extremly stable fit and sat beautifully on my back .i have only dived 3 times with the 10's now and they seem stable and so far ok but i am having a small issue with the weight of these things ,I am sure a back plate would be a lot stiffer but with the bands they all feel stable to me .I am no expert and this is my own personal opinion.

Regards,

MAL..