As far as "loft" - what may seem like loft to some people is just the "natural" landing spot for some bowlers - due to height or lack of kneebend, or in my case, both.
I have a teeny bit of kneebend, and I'm 5'11". the ball is following the proper arc, and is still being "landed" on the lane, not bounced - but it hits about 3 feet out, instead of right at my foot. I've watched it on video tape - and can see the difference.
But most people call it loft.
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All things are difficult
before they are easy.
---- Thomas Fuller