How much is too much when it comes to paralegalling?

I’ve got five years paralegal experience. Will look bad on my application form?

I have been a paralegal for five years now after doing my LPC but I am thinking of applying for a training contract again. I presume firms are going to think it strange that I have paralegalled for so long without securing a training contract, so many would probably reject me before interview. What are your thoughts on this? Do you think there is such a thing as too much paralegalling?