Ridehard,
there are quite a few people that have tried both. I would say that probably 99% of those posting found Yohimbine(both topically and orally..orally being less effective than topical with more side effects) vastly superior. (note- I have not actually seen a single post saying that they liked cutting gel better, most found cutting gel to be a waste of money.. though some (very few) liked it
The reason being that cutting gel, which contains aminophylline or theophylline (i forget which), is a very weak beta agonist... this means that it does have some WEAK fatburning properties. its local effects are due to its DIURETIC effects.. it "gets rid" of local water.. temporarily.. It is a poor fat burner, has no "local" fat burning effects" and is basically expensive "topical water pill"... most consider it a waste of money.