Kale... they are cheap enough to try out...
Remember... the stock unit has about 1" rise to the block...
A 2" straight PowerMadd "spacer" block will give you an additional 2" rise where a 3" riser with built-in saddle, like Ole's, AMP or RSI, will give you the same amount of rise.
Keep that in mind so you are talking apples and apples.
Good luck.