When I started I had a low base and then made a commission on top of that - there was no threshold, I was paid on everything I sold. Within a couple months that changed and I then had to meet a pretty high threshold before I would be eligible for commission. But - once again the compensation plan changed (all of this in 4 months) so that we would only be paid once per month - and it would be half way through the following month! Our earnings were dinged for cell phone charges even though we were required to listen to up to 15 minutes worth of cheerleading from the executives every morning, and if we did not collect a high percent of the payment from the business who bought an advertisement up front, our salary was further decreased. You can't expect sales people to pay to put gas in their cars daily to be able to cover a large territory and make all these calls when you do not have frequent pay checks.
Don't be such penny pinchers. Allow the creatives to be a 'lil creative. Keep middle management from constantly pushing you to produce faster. Basically allow more than 15 minutes to produce a 1/4-1/2 page ad a client is paying upwards of $1,000 for.
Unstable with compensations and bonus pay.