you are right, the corners are not all the same at all.
if there is anything in particular i can cut out that you would like to see to help with the situation than let me know and i will cut it out and post pics of it.
will play around with the offsets and see what i get. as for the carriage, it seems fine to me, is there a certain way you would like me to check to see if its spot on. but to me it does not feel loose.
thank you for your help