You can use an all lace base for exercising but you'll have to make sure that you have a strong bond. A strong bond with an Exercise Base will last for several days because the poly give you a flat smooth service to adhere to and it gives a more solid bond--there just more surface area to attach to. You can also get a strong bond with a lace system but it will not last for as many days as a unit with poly due to less surface area to attach to. Bottom line--you can exercise with the French lace base but as a trade-off you'll have to remove and re-attach more often. How often? Depends on your body chemistry, intensity of your workout, bonding adhesives, water quality, etc. It will require some experimenting to see what works for you.
Regards,
John
http://www.toplace.com/