I am seriously considering purchasing a Circle Y Flex2 trail saddle. I am currenly using a FQH tree and 7" gullet saddle on him, but it's a touch wide and slips back. So, I am looking at a Flex tree saddle to fit him better. Here's the problem. I had heard that a flex tree saddle shouldnt be used by anyone over 200lbs. Has anyone heard this before? What are your thoughts on flex tree saddles, are they really worth the extra $? Do they hold up well? Thanks!