does mixing buyl w/ foam make a difference

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As the title says I have a set of original EPI m201 speakers w/ all 4 woofers w/ butyl surrounds. One speaker was horribly repaired at the seam of the surround and cone w/ what looks like Aleen's glue. I already ordered a replacement woofer that says all original w/ butyl surround so I'm not concerned here. Just for informational purposes can you mix and match both types of surrounds? Besides the obvious life expectancy of foam is there any real difference ??
2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc

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