Group Rates for cavetubing?

[imluvncruzn]

Has anyone ever booked a large group and if so what company did you choose? I had high hopes for VIV tours because of the newer tubes with headrest and mesh bottom but so far not impressed with their customer service and they offer no discounts for children or groups. The VIV price is $45 for everyone and does not include anything extra. Cave-tubing dot com is $40 for adults, $25 for kids under 10, and includes bottled water and Belizean Tamales. I guess my question now is does anyone know if the two companies mentioned above do the same amount of caves? Also, does cave-tubing dot com still do the feet under the arm pit thing? I think the answer to those two questions will help me make up my mind. Thanks in advance for your input.