prize of the trials

Hi All
Has anyone grown prize of the trials tomatoes. I have grown four plants this year two in quadgrows and two in greenhouse border. The fruits look amazing but toms from all four plants are spitters the texture is mealy and the taste is awfull, bitter and nasty.
I would like to hear other peoples experience of this variety.
All other varieties grown in the same way are fine, beefmaster, sungold, amish gold, ruths perfect, Sakura, Mandarin orange, pork chop and Juanne Flamme
In fact the sun gold and Juanne Flamme have been amazing for flavour.

Regards Alex